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Recent content by dgatwood

  1. D

    Coronavirus

    Agreed. Not even close. Heck, a lot of states only give numbers every two days these days, so you can get more skew than that just from those states having four reporting days in one week and three in the next week. One week of data isn't nearly enough to say that the numbers are trending...
  2. D

    Hydrogen vs. Battery

    I guess it depends on the company, but once the BackBlaze folks concluded that temperature and reliability weren't correlated for hard drive reliability, a lot of folks cut back. https://www.backblaze.com/blog/hard-drive-temperature-does-it-matter/
  3. D

    Hydrogen vs. Battery

    Yes, and UPSes tend to be used in server rooms, which are the exact opposite of a cool climate. :cool: In cars, what will kill lead acid batteries quickly is vampire drain in an ICE car that's parked. Single-digit months.
  4. D

    Hydrogen vs. Battery

    That's about lithium-ion batteries. UPSes almost always use lead acid batteries (like your car battery). It's an entirely different chemistry. I've added a note to my post to clarify that I'm talking about SLAs. No lead acid battery has ever lasted 50 to 100 years. After single-digit years...
  5. D

    Hydrogen vs. Battery

    Ostensibly, yes, the best pumped storage gives you almost half again more power back than the best reversible fuel cell approach, which is a big difference. Unfortunately, pump-based storage requires specific geological structures to make sense (two lakes at different levels), and the cost of...
  6. D

    Hydrogen vs. Battery

    On the contrary. When used for backup power, they're almost certainly talking about reversible fuel cells, which means the fuel cells are producing hydrogen during the charging phase and consuming it during the discharging phase. They're a self-contained system, and the only loss is energy...
  7. D

    Karpathy leaves - what's next for AP/FSD?

    Bear in mind that the insufferable Steve Jobs was *before* he got booted out. That experience humbled him considerably, and the return of S.J. saw a very different personality. Of course, in the years between those two periods, the company nearly bit the dust, and survived only because of a...
  8. D

    2022.8.10.1 on MCU1

    Ick. Sounds like this update still hasn't fixed all the major regressions from the previous update. *bangs head against wall* XM is a major piece of functionality, and for Tesla to break that for half a year, then release an update that still doesn't fix it is unconscionable.
  9. D

    2022.8.10.1 on MCU1

    It may be that they pulled it for some reason.....
  10. D

    2022.8.10.1 on MCU1

    It's rolling out *only* on MCU1, as far as anyone can tell.
  11. D

    2022.8.10.1 on MCU1

    File a service request in the app and ask them to re-deploy the firmware.
  12. D

    Tesla stopped updating older MX

    Indeed. I sometimes wonder if we wouldn't have been better off alone, each one for himself. We weren't made for the same road.
  13. D

    2022.8.10.1 on MCU1

    There are about 6% on the previous release for MCU1, so it is probably somewhere around 5% to 10% of eligible cars.
  14. D

    2022.8.10.1 on MCU1

    Judging by Teslascope, maybe half a percent, if that.

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