David Caldwell (@roodave) header
David Caldwell (@roodave) profile picture

Engineer. Urban & rail transportation - cities - applied arts & sciences - major projects - regulation - competition Tweets represent personal views only

Sydney
Joined March 2010
Photo by David Caldwell (@roodave)Photo by David Caldwell (@roodave)Photo by David Caldwell (@roodave)Photo by David Caldwell (@roodave)Photo by David Caldwell (@roodave)Photo by David Caldwell (@roodave)Photo by David Caldwell (@roodave)Photo by David Caldwell (@roodave)Photo by David Caldwell (@roodave)Photo by David Caldwell (@roodave)
David Caldwell retweeted
One reason politics used to be much more sensible is most politicians (regardless of party) had shared experiences of working very hard in tough jobs or fighting for Australia or both. Deteriorated from 1990s with rise of a frivolous “political” class-who today drive us all mad.
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When I read my first Tom Clancy novel I thought what most dated it, tied it to the ’90s, was its confidence—the belief in experts, the trust in institutions, the faith in technology. I wrote a whole essay about it, I found it so striking. These days, I think what most dates Clancy is how many of his characters are empowered with real responsibility in their early thirties.
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David Caldwell retweeted
In NSW our government has excluded batteries from participating in the next 1.5GW of firming. In Germany batteries don’t win in the tender… Batteries can’t replace dispatchable fuels. They’re an ‘and also’. nitter.gq/footnotesguy/status/21…
A win for fossil gas. Not a single battery storage project was able to win capacity auction in Germany. Gas power plants won instead. In theory these are marketed as "hydrogen ready", but there are no specs and penalties in contracts which would make it viable.
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David Caldwell retweeted
“Everybody’s profiting.” -President Trump Except the people who bought his coins... Trump family crypto earnings: $1.4 billion $TRUMP meme coin: -98.4% $MELANIA meme coin: -99.5% Perhaps the most blatant example of corruption in the history of American politics.
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David Caldwell retweeted
Powerful words from Joshua Wong, a freedom fighter being crucified by the barbaric Chinese dictatorship
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David Caldwell retweeted
now let's go back to talking about the bankstown extension of the sydney metro, a feat of engineering and towering civic achievement the US could scarcely dream of
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David Caldwell retweeted
What’s playing out in the rental market was completely predictable. What I said would happen a year ago below is now going on; the only thing left is for these measures to catch on across the whole market. Rent controls are back - @mtpennycook deserves a lot of the credit!
The government's Renters' Rights Bill looks like it will be a catastrophe, inadvertently introducing rent controls and reducing the supply of housing even more. It is the clearest evidence that the whole British state that has brought it about is completely broken: • Written by the civil service • Introduced by the Tories • Passed by Labour and the Lib Dems • Cheered on by the mainstream media The bill's core provision is to eliminate "no-fault evictions". Many understand this to mean evictions during a rental lease. In fact, this is already impossible. What the new bill does is to stop landlords from being able to regain their property after a lease has expired. This means that renting a property to someone now means that they get to live in that property indefinitely. A landlord can only evict them if they are selling the property, or plan to move into it themselves, or if a tribunal gives them permission after ruling against the tenant for bad behaviour. Within these indefinite contracts, rent increases will be capped at whatever the 'market rate' is determined to be by a tribunal. Tribunals will not be able to *raise* rents, as they currently can and often do – only lower them or keep them where they are. The only risk to a tenant is that their challenge is deemed "vexatious". Not only will rent increases *within* contracts be controlled by courts, rents for *new* contracts will also be controlled by them. Tenants will be entitled to agree a rent, move in, and then immediately take their landlord to a rent tribunal on the grounds that the rent they have just agreed to is "too high". Rent tribunals will thus have the power to control all rents. All rents will be set under the threat of a tribunal intervening. There will be no "market rate", so the tribunal will have no independent "market rate" to refer to. A tenant who challenges a rent increase will have their rent frozen at the old, lower rate while their challenge is ongoing (which could take over a year). Like the Building Safety Regulator right now, tribunals are likely to be extremely backlogged, creating huge delays where tenants do not have to pay their new higher rents, if they ever do. Tenants will have huge incentives to challenge nearly all rent increases. We have already seen how bad courts are at ruling on prices, eg in cases where Next's shop workers have been given the same pay as factory floor workers, and in Birmingham where the council was forced to pay £760m to care workers and teaching assistants because a court decided that these roles were equivalent to jobs like rubbish collectors. All this amounts to rent controls. These are terrible for many reasons. 1. They will cause landlords to sell up and leave the market. This is both to avoid the risk of being stuck with a bad tenant, and because once the rent has been kept artificially low by a rent tribunal, landlords will be losing money compared to just selling into private owner-occupation. Rental properties allow for easy doubling up (housesharing) which is much messier under owner-occupation. The effective supply of housing is about to drop. In Ireland, postwar rent controls shrunk the rental market from 26% to 8% of the total housing stock in 40 years. In Britain, 1916–88, the share of properties available for rent went from 75% of the market to 10%. 2. They cause landlords to neglect their properties. Landlords receiving artificially-depressed rents for their properties have no incentive to maintain them. Rent controlled properties, famously, become neglected and fall into decay, as leaks, cracked plaster and broken windows are left unaddressed. The country's housing stock that remains in renting will decay. Our cities will become more decrepit. 3. They stop people from moving around for better jobs. We already have this effect with social housing, where huge amounts of inner London housing (30–40%!) are held by tenants in low wage jobs, or who have no job at all, instead of by people who could move to London to earn and produce more. This will happen to large swathes of the rental market too, stopping people from moving into prosperous cities where they could get better jobs. 4. They stop the supply of new homes for rent. Under rent controls, there is no incentive to build new homes for renting. Britain built essentially no private flats for rent between 1945 and the end of rent controls in 1988. The same was true in France between WWI when it introduced rent controls and the slow end of rent controls in the postwar era. 5. They push renters into the black market. To actually get a place to live, a lot of people will sidestep these new rules and rent informally, with none of the protections we currently have for renters like the deposit protection scheme. This is the sort of scenario that allows landlords to *really* exploit and steal from their tenants. – Do not assume that anyone involved with this knows what they're doing. We have already seen, in the case of the Building Safety Regulator and the second staircase regulations (brought in by the same Housing Secretary who designed this bill), how disastrous the consequences of well-intended but misconceived interventions in the housing market can be. London building has already ground to a halt. And things are about to get even worse.
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Replying to @JacobAShell
I won't say that every transit project raises GDP. But in general, having a good public transit system is not a welfare program. It is a space-efficient and energy-efficient way to get workers to work and get consumers to shops. The idea that transit makes GDP stagnate just because many countries with stagnant GDP have good transit systems is nuts. That's cargo-cult thinking. The truth is that those countries are near the technological frontier, so growth is slow because catch-up growth is over and fertility is low. That's why they have good transit systems -- they already built out their capital stock, and transit systems are part of the capital stock of an advanced nation.
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David Caldwell retweeted
it's crazy that Goethe was dropping these bangers in his private journals 200 years before the internet
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David Caldwell retweeted
Will Durant, read it twice
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AN AWARD-WINNING IRANIAN SHORT FILM THAT CHOKED ME UP ❤️ An elderly man notices a couple arguing in traffic, while their little daughter silently watches everything from the back seat. Seeing the little girl caught in the middle of their argument, he and his wife decide to do something to remind the family of the love they seem to have forgotten. Through a simple gesture involving flowers, they send them a heartfelt message. But the ending reveals something truly heartbreaking... The elderly man was never actually accompanied by his wife. He visits her grave every Thursday. The empty seat beside him holds nothing but memories of the woman he loved. The flowers he had originally brought for her were given to the arguing family instead, hoping to remind them of the love they still have. And the little girl’s response with a flower of her own makes the moment even more emotional. A man who can no longer share his love with the person he lost, yet still finds a way to bring a little love back into someone else’s life. 🫰
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Its funny how Australia has won the crown for per capita Anglosphere home-building for 37 straight years. Yet we are told the problem is not enough new supply. Spare me. Just better match supply to demand like we did prior to 2005, aka pre-Big Australia.
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David Caldwell retweeted
Some years ago there was a guy called Mohamed Abdulahi Mohamed who worked at the New York Department of Transportation in suburban Buffalo. He somehow managed to arrange for a meeting with the then-president of Somalia during a US visit to pitch him on some anti-corruption ideas. The president liked him so much that he invited him to interview for Prime Minister -- a position he got and held from November 2010 to June 2011. He eventually returned to his cubicle in Buffalo.
the us lets you keep your citizenship if you become a head of state of another sovereign entity???
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David Caldwell retweeted
Yes. This is a big part of why TNG has broad appeal: the progressivism is tempered by a conservative emphasis on duty, the chain of command, respect for the law etc. A very 80s / early 90s combination.
Jean-Luc Picard remains the single most compelling vision of progressive politics I am familiar with — secular, rational, compassionate, egalitarian; a believer in progress & abundance but also duty, hard work, and a constant battle for self-improvement and improving the world.
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David Caldwell retweeted
En 2014, una niña de 11 años pidió conocer a Patrick Stewart. Su familia esperaba que el actor le dedicara apenas dos minutos, pero él se quedó casi veinte. Un fotógrafo tomó unas 5.000 imágenes durante aquella convención. Sin embargo, decidió publicar solamente una. La niña se llamaba Dawn Garrigus y padecía una enfermedad mitocondrial grave. Era admiradora de "Star Trek" y su mayor ilusión era conocer al hombre que interpretaba al capitán Jean-Luc Picard. Gracias a la fundación Make-A-Wish, consiguió reunirse con Stewart durante una convención en Atlanta. Sus padres pensaron que el encuentro sería muy breve. Pero Patrick se sentó junto a Dawn y comenzó a conversar con ella sobre sus personajes favoritos. Le firmó sus figuras de acción y compartieron algunas risas. En un momento, la niña le dijo que era un honor conocerlo. Stewart respondió: "No, el honor es mío". Después de unos quince o veinte minutos, cuando la conversación estaba terminando, Dawn lo abrazó espontáneamente. El fotógrafo James Barker, que había permanecido a cierta distancia para darles privacidad, consiguió capturar aquel instante. Durante los cuatro días de la convención había tomado unas 5.000 fotografías. Pero decidió publicar solamente esa. La imagen se difundió ampliamente y conmovió a miles de personas. El padre de Dawn contó después que aquel encuentro había cambiado su admiración por el actor. Ya no lo recordaba solamente por sus personajes, sino por la manera en que había tratado a su hija. Hoy, 29 de octubre de 2026, se anunció el fallecimiento de Patrick Stewart a los 86 años. Entre tantos papeles inolvidables, también quedan momentos como aquel: una niña que soñaba con conocer a su héroe y un hombre que consiguió hacerla sentir que la persona importante de aquel encuentro era ella.
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David Caldwell retweeted
SIR PATRICK STEWART (1940-2026) Before everything else, Patrick was defined by being born and bred in Yorkshire, the proud county in the north of England which he loved to the end. You could hear it in his accented voice and in the stern honesty with which he told you what he thought and felt. Yorkshiremen have no truck with half-truths or avoidance of big issues. He wore his heart on his sleeve, which made him a man to rely on, to admire and in my case, love. We first met as ambitious young actors with the Royal Shakespeare Company half a century ago but we weren’t in the same productions. My first strong memory was a few years later, meeting him in the street in central London when he told me about an offer to take over a leading part in 'Star Trek'. “But Patrick think of your stage career in the UK. Do you really want to risk—getting lost in Hollywood for years and years?”. Well, he took the risk and thank goodness for us all that he did for not just his devoted Trekkies but film and theatre audiences, who marvelled at his using international celebrity to star in a string of cinema successes ('X-Men' of course) and in great classical plays by Shakespeare, Ibsen, Arthur Miller, Peter Shaffer, Pinter and Beckett at Stratford-upon-Avon, in London’s West End and on Broadway. America was his adopted home, where he met his adored Sunny who has cared for him through sickness and health, through thick and thin. But he never forsook his origins: and the proudest achievement of the most respected and beloved actor of his generation on either side of the Atlantic, was his appointment as Chancellor of Huddersfield University in Yorkshire. His farewell performance in 'Avengers: Doomsday' is yet to be seen. Ian McKellen 29 October 2026 Photo: University of Huddersfield
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David Caldwell retweeted
😂
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David Caldwell retweeted
Australia is now on track for its 6th year in a row of increased fatalities & has plummeted in international road safety rankings. Once again the biggest increase in fatalities is among vulnerable road users like pedestrians, cyclists & motorcyclists. abc.net.au/news/2026-10-28/a…
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David Caldwell retweeted
October is Pedestrian Safety Month. It's a fine time to remember the problem of vehicle design is only getting worse. Some people say "just wait for AVs to fix this." That lack of urgency is because they aren't thinking of losing their own loved ones.
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Another image of the presentation of the Queen's Banner to "A" Field Battery by the Governor-General Sir Paul Hasluck, on behalf of Queen Elizabeth II, at Sydney’s Victoria Barracks on 1 August 1971. Courtesy: Royal Australian Artillery Historical Company #History
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