• 0 Posts
  • 45 Comments
Joined 1 year ago
cake
Cake day: October 5th, 2023

help-circle


  • COASTER1921@lemmy.mltoLemmy Shitpost@lemmy.worldDynamic pricing
    link
    fedilink
    arrow-up
    4
    arrow-down
    3
    ·
    3 months ago

    Are happy hours and lunch specials not dynamic pricing? It’s just a different way of framing it as a discount rather than surge price, but it’s basically the same idea as far as I’m concerned. I’m happy to vote with my wallet on this, if Wendy’s decides they want dynamic prices then I’ll just go elsewhere. Fast food certainly isn’t an essential.


  • I have a North face shuttle daypack that is exactly the nominal dimensions and conveniently boxy. I’m 90% sure it’s fake though, so going with a ruler to a store or market that sells backpacks is what I’d recommend.

    There is a company making a hard sided suitcase with removable wheels which can fit. I’d strongly recommend against that because the handle will take up so much of the already limited space. And there’s nowhere to put the wheels when they’re removed where it can still fit. Note that Spirit sizers are unofficially 18x14x9 rather than the officially advertised 18x14x8. Frontier’s bag sizers are truly 18x14x8.


  • The problem is so many services requiring SMS to be that second factor. From what I’ve heard it’s easy enough to steal a sim that if you’re being explicitly targeted it’s basically the same as no second factor. Yet even if using an authenticator app most services require you to still have SMS/phone as another option for the 2FA.

    For Authy specifically they’d need to guess your master password and then hijack your phone number, and for users of Authy I suspect their passwords are not easily guessed as it’s already a step above the standard SMS only 2FA most services require.


  • The US really doesn’t understand that there is simply no competing with these batteries. To try to block the import of them is only going to set our own local industry back in their ability to compete in the global economy. And ironically the BMS systems for CATL are still using American semiconductors, so the US still gets some revenue from their massive expansion.

    The most viable competitors to CATL are all in China too. I’d be somewhat supportive of a CATL specific ban due to their notoriously terrible employee working conditions and crazy NDAs/non-competes, but to ban all Chinese batteries in the US would be a huge mistake.











  • Yes, but to increase longevity energy density goes down substantially. Manufacturers (and many users including myself) would not make this decision for something as weight and size sensitive as a phone. The lithium ion batteries currently used already last for 2 years after all and are relatively small. A single model S battery contains 7104 individual cells for comparison. Further, lithium battery recycling has made substantial progress over the last year and will already need to be done at scale when higher volumes of EV batteries have reached their end of life. The impact of the of life phone batteries even from the entire world will be dwarfed by that of the 26 million EVs already on the roads today with thousands of cells each (or equivalent if using prismatic cells).

    Some cars use LiFePO4 batteries for the superior longevity. But the range is reduced to somewhere between 1/2 and 2/3 their lithium ion counterparts. The industry is moving away from this trend in recent years in favor of traditional lithium ion with a software limited charge/discharge range.



  • The chemistry from holding that last 20% of charge for a while is what causes the degradation. The BMS can tell the system to stop charging before it’s full but it can’t do anything itself to prevent the cell from slowly being degraded by full charging.

    This is is a problem that occurs on the order of years and that’s why the EV companies care but phones historically don’t. More easily replaceable batteries is the real solution here, not software stopping you from fully charging.