They are cosmic time inferred from redshift, anchored by independently measured distances. Redshift does two things at once. It tells us how much the universe expanded since emission, scale factor then = 1 / (1+z) And it tells us when the light was emitted, because we know how old the universe was at each scale factor if we assume a specific expansion history. Sounds circular but it isn’t, because the expansion history is solved for by fitting many observations at once. So, the timestamps are emission time = age of universe at that redshift, and arrival time = now. These timestamps are inferred consistently across thousands of objects. Redshift itself does not tell us where along the path the stretching occurred. If most redshift had occurred early, the curve would bend the opposite way. So the curve only fits if expansion accelerated late, not early. The missing piece isn’t intuition, it’s realizing that distance measurements are the timestamps. (Wrote this in public with Siri, so feel free to ask or if there’s typos. People with inane conversations about salads lol)
RustyShackleford
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RustyShackleford@piefed.socialto
Technology@lemmy.world•Disney Invests $1 Billion in the AI Slopification of Its BrandEnglish
25·2 days agoIt reminds me of 3D movies.
Think of redshift as:
“Total miles added to your car trip.”
But distance adds:
“How long you were on the road and how fast you drove at each stage.”
With only mileage, you can’t say whether you sped up or slowed down. With mileage and timestamps, the full story emerges.
RustyShackleford@piefed.socialto
World News@lemmy.world•More than 1 million people in Germany without housingEnglish
121·3 days agoThat’s the point, cull the populace.
RustyShackleford@piefed.socialto
Television@piefed.social•Netflix has signaled it will keep HBO Max as its own service. Until the acquisition is completed — which could take more than a year, consumers will continue to pay one subscription fee to Netflix andEnglish
10·8 days agoSad that it’s gotten to this point.
RustyShackleford@piefed.socialto
Television@piefed.social•Netflix has signaled it will keep HBO Max as its own service. Until the acquisition is completed — which could take more than a year, consumers will continue to pay one subscription fee to Netflix andEnglish
11·8 days agoI hope so. I’m getting too old for this, haha.
RustyShackleford@piefed.socialto
Television@piefed.social•Netflix has signaled it will keep HBO Max as its own service. Until the acquisition is completed — which could take more than a year, consumers will continue to pay one subscription fee to Netflix andEnglish
12·8 days agoThis is true? Apologies, but I’m sick with influenza and a chest infection at the moment, so my cognitive function is masked by medications lol.
RustyShackleford@piefed.socialtoMicroblog Memes@lemmy.world•Keeping Up To CratchitEnglish
4·9 days agoQuick math in my head says Bob Cratchit’s 15 shillings a week in 1843 comes out to somewhere between about $940 per week in December 2025. Or, $48,000–$49,000 a year.
RustyShackleford@piefed.socialto
Reddit@lemmy.world•/r/Tennessee doesn't want people posting about the Tuesday electionEnglish
3·13 days agoReddit mostly cleared that up by deleting the posts, and banning the users. They couldn’t risk looking like they did anything wrong, like working alongside a company to check for running apps on iOS, when it’s specifically designed to be sandboxed. Not surprisingly, other users discovered Apple was turning a blind eye to the attempts to check systems memory for hooks.
RustyShackleford@piefed.socialto
Reddit@lemmy.world•/r/Tennessee doesn't want people posting about the Tuesday electionEnglish
5·13 days agoIt sounds exactly like the behavior of Reddit moderators. The entire platform was a form of hidden marketing; if anyone discovered it, they would flag or ban you.
No problem, being old has to have had some benefits lol. This was my shot.
They match the style of proprietary A/V control system ports used in 1990s conference rooms, Projector control interfaces, Crestron / AMX / Extron wall plates, RS-232 or RS-485 wiring inside custom housings.
They were used to connect Projector control panels, Motorized screens, Audio/video switchers, Touch panels, Old teleconferencing gear.
RustyShackleford@piefed.socialto
Reddit@lemmy.world•/r/Tennessee doesn't want people posting about the Tuesday electionEnglish
82·14 days agoThat’s Reddit, I was banned from a Pokemon Go subreddit for being against Niantic forcibly leaving their sandbox environment on iOS.
RustyShackleford@piefed.socialto
World News@lemmy.world•OpenAI confirms major data breach, exposing names, emails and moreEnglish
8·16 days agoGood thing I blocked Mixpanel the second I saw it pop up for analytics. Call me paranoid.




Thank jeebus the hinge issues are done!