400 years to Proxima Centauri means velocity of roughly 1% of c. To accelerate to that, then decelerate, takes energy on the order of 1-2% of the ship's rest mass.
Ship is 36 miles (50km) long.
So it obviously masses many gigatonnes (1 cubic kilometer of water—0.15 the density of steel—masses 1 billion tonnes). Conservatively this masses 10-100gt.
Fusion bomb yield is about 2% of the payload mass. Our current 10,000 H-bombs probably contain 1000kg of fuel.
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https://spacey.space/@nyrath/114992789210759955
You've got to admit that it's TOTALLY on form for a Labour Minister for the Homeless to do her bit to personally increase homelessness.
https://dataare.cool/@af/114986296358352756
"The way I see it, during any given period the market is driven by a narrative, positive or negative. The current narrative is strongly driven by optimism about AI. And it takes a major shock to change a market narrative.'
And Krugman goes on to note that investment in AI data centres accounts for about half of all US economic growth in 2025.
AI winter is coming. And then there will be a depression. (NB: that's me, not Krugman.)
https://mastodon.social/@rbanffy/114981848940676725
You can't fool me: this is a cyberman burka.
Isn't it fascinating that ants are so ubiquitous and numerous that "become an obligate anteater" is a reliable evolutionary niche for mammalian carnivores? (And were there also small dinosaur anteaters in the Cretaceous?)
Also, can mustelids evolve into anteaters and vice versa? And what happens when carcinization cuts in?
https://www.theguardian.com/commentisfree/2025/aug/06/animals-evolving-anteaters-future-of-humanity
This. Just, this.
Putting generative AI in software products is absolutely the informational equivalent of adding radium to foodstuffs in the 1920s!
https://infosec.exchange/@varx/114543772651563806
Charlie Stross