fyp

This is probably premature optimization, but what's the performance cost of updating a deeply nested field inside a jsonb? What about indexing it?

(compared to storing in some normalized form or in other popular document stores)

Uber/airbnb/lyft were considered in the same tier as facebook/google before corona. With google also slowing hiring, are the engineers laid off all going to be absorbed by facebook?

Isn't that the wrong direction for the optimization? I would assume you would want to compile adding two numbers into shifting by one, not the other way around.

(I know nothing about hardware, it just intuitively seems like moving a bunch of bits over by 1 should be faster than dealing with xor and carries)

Even with worst-case scenario of bias, this is still extremely good news. My worry was always with super spreaders who refuse to isolate but the data is suggesting that those spreaders will still soon achieve herd immunity among themselves. As long as the rest of the society behaves we will still hit zero cases relatively quickly.

(which wasn't always clear to me before since I initially predicted that this will take years to work out)

Hmm is the argument that you can generate infinite money otherwise? I think the two directions only look superficially the same because externalities and labor isn't taken into account?

One of my colleagues loathes competitive programmers and picks much harder problems for them. His grumpy rationale is that they shouldn't have it any easier just because they do interview problems as a sport. Usually the ICPC world finalist types will still ace it since he's too dunning-kruger to judge beyond his own skill level.