Because people use credit cards for the rewards (cash, mileage, whatever) or because they don’t actually have the money now. They don’t want to pay for a unique number for every transaction (which doesn’t actually preserve privacy since most of the stuff you’re buying online needs a shipping address) nor do they want the money immediately pulled from their bank account.
Credit cards give rewards which can be significant, reduce or eliminate the need to keep liquid cash around and frees it up for investments which compounds on top of the rewards, and it dramatically simplifies the number of annoying bills from N to one.
He found a sideloadable JIT server + VPN setup. It seems super sketchy honestly, and it's a shame that people have to go through this to enable a feature that should just be available. There is no legitimate reason to block access to JIT.
Ther are plenty of well documented uses for quantum computers, the hardware is just too nascent to fully accommodate them. The most powerful quantum computers today still only have just over 1,000 qbits.
If you have significantly better quantum computers, you can solve realistic problems, yes.
But what's not being spelled out here is that as far as we know classical computers will still totally smoke them unless you allow a large probability of inaccurate results.
And if you are fine with inaccurate results, classical randomized algorithms make it a much more difficult deadline to beat.
Physicist here. It highly depends on a bunch of factors (the type of qubits, the error correcting code, the error rate, the algorithm…), but a ballpark number for practical usefulness is 1 million physical qubits.
Keep in mind that qubit requirements keep tumbling down as people work hard to squeeze out as much as possible from a limited number of qubits.
Assuming what the public knows about is the state of the art, of course, which I doubt is a good assumption to make. I'm sure major governments have been funneling billions for years into secret projects to be the first to be able to break the (non-post-quantum) communications of everyone else.
Id like to contribute to a large project like Linux or python by writing docs, testing or some other non development activity. Is that possible or needed? How would I go about doing that?
When the iPad came out I thought to myself "Who needs a big iPhone? also, god what a dumb name, 'iPad'. Apple really missed the mark on that one." Welp, I was wrong then. I don't personally see myself using this but that doesn't mean it is not going to be successful. I'll just wait and see.
What’s one thing most people get wrong about k8s that makes learning unnecessarily difficult?