Actually, there are a bunch of other variables (energy density, stability, discharge current, etc. etc.), so the probability of a technology that improves one significantly without negatively affecting at least one other is vanishingly small. Hence the number of overhyped battery technologies that get reported but never productised.
They claim not only fast charging, long life and low cost, but also very high energy density, no degradation in low temperature, no thermal runaway, non-hazardous materials and no "geopolitical" needed.
Going even further off topic, one of the things I love with Apple is having all your subscriptions in one place, and being able to cancel them easily.
The few zombie subscriptions I've had have all existed outside of the App store, one that I didn't even sign up for (looking at you Masterclass). I bought a one year gift subscription for someone else, and because it came with a "free" subscription for me (that I didn't use), I git hit with annual renewals until I noticed it on my credit card statement and cancelled.
Yes, I should check those more frequently, but who has time for that?
It rankles that you can can cancel a free trial before it's over with every app exept Apple's. I like the feature, but the double standard grates.
I'm amused but not entirely surprised to see that live video production hasn't meaningfully progressed since I was involved 30+ years ago.
Yes, the technology has evolved – digital vs analog (partly – for example analog comms here because digital (optical) "isn't redundant" (lol, what?)); higher resolution; digital overlays and effects, etc. But the basic process of a bunch of humans winging it and yelling to each other hasn't changed at all.
This is an industry ripe for massive disruption, and the first to do it will win big.
Most people of that era were "very well-dressed" relative to their wealth compared to today's "pyjamas and slippers to go to the local shop" level of couture, so I'm not to sure how much you can read into that.
But total wealth was a lot lower than today, while clothes were much more expensive relative to the average income than today. Many people wore their best clothes on Sundays only, and street photos from the same period show that an average person was dressed rather simply.
I don't even think that the tube was affordable to average working class public. When I read historic accounts from much later (the 1930s), they mention that fare on public transport was expensive enough that you had to choose between a breakfast and a ride.
Obligatory /disclaimer/disclosure/. (Don't worry, most HNrs get this wrong for some reason. I will be downvoted for pointing this out, but whatever. It's a meaningful difference to those that understand.)
Actually, there are a bunch of other variables (energy density, stability, discharge current, etc. etc.), so the probability of a technology that improves one significantly without negatively affecting at least one other is vanishingly small. Hence the number of overhyped battery technologies that get reported but never productised.
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