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Joined 1 year ago
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Cake day: June 12th, 2023

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  • I see a lot of people talking about specific parts of 5G but honestly most of them are optional and only some of them will be active at once.

    “Regular” 5G uses the same frequencies as 2G, 3G, etc. The carriers will be moving more frequency ranges of older Gs to 5G as time goes on.

    In general, we can send more data at once because we have better math for sending data. There’s not really an ELI5 that can explain that part besides more math.

    Another part is there’s also more math so that the phones can take turns talking better or split up frequencies better, so they don’t have to re-transmit as much.

    If you’re in hyper-crowded areas, they made a new frequency range that cannot go through walls, but is way faster than the regular ones that we’ve been using. It’s only good for like sports stadiums and stuff, and you almost never use this. It’s called mmwave (millimeter-wave) and you can safely ignore any marketing around it. Not many phones support it yet because it’s useless 99% of the time.






  • It still defends against one failure mode (the website gets hacked but you’re ok) but yeah, obviously if you get hacked and the hacker knows how to get your vault out then you’re 100% screwed.

    My suggestion is always hardware 2FA, even though it’s not as mature as the other systems. Personally I have two Yubikeys (in case one breaks/gets lost) but it does mean that I need to add TOTPs to both of them each time I add a new 2FA.



  • Instead of money? I would imagine it would be money.

    It’s not that people stop working. We still need food, shelter, communication, entertainment, etc. Money is how you convert goods, and I don’t understand how you think that need would vanish.

    But worker efficiency is through the roof. One farmer can grow enough to feed thousands of people. A factory with 10 people can make millions of a given product a year. We can communicate from across the globe without anyone having to carry the message by hand. What makes you think we can’t at the very least give everyone food and shelter in those circumstances? No one intrinsically has to suffer. It only happens because of human greed.