Everyone is sinking tons of money into these ventures with the hope that they succeed before their competitors, and get that sweet sweet first mover benefit.
[1]: https://en.wikipedia.org/wiki/Law_of_the_handicap_of_a_head_...
Who’s buying it? Well, it’s not just for researchers. Companies interested in solving complex optimization problems are potential customers. These could be businesses in logistics, finance, or even AI. The key here is that D-Wave’s tech is handy for certain tasks, but it’s not a do-it-all kind of quantum computer. Think of it as a specialized tool for specific jobs, rather than a Swiss Army knife.
I also believe that future isn't unlimited, as I strongly suspect someone will figure out an algorithm on a conventional computer that can simulate it efficiently, thus negating its advantage.
Think of them as research centers in search of grants. People investing in them accept a short/medium/long term loss, betting that it will turn a large profit if it works (i.e. if one entity wins over the problem of noise).
High risk and reward.
Striking similarities to biotech.
If you believe any company today doing QC stuff will earn money ever, you're playing the really long game.
How do you know this?
1: What is programming a quantum computer like?
2: What are the useful applications of a quantum computer?
I know everyone always says encryption, which implies that a quantum computer can run calculations in parallel; specifically, significantly more orders of magnitude more parallel than a conventional, multicore / multi-CPU computer.
But beyond that?
You compose a series of gates that manipulate the state qbits to perform calculation. My understanding is that these gates can be abstracted in a somewhat familiar programming language environment.
I've got a very rudimentary understanding, my crude summary would be: it's basically applied linear algebra, leveraging the properties of superposition to perform some types of computations more efficiently. Namely, reducing some search spaces to sqrt n.
This video is a good hands on intro:
TBH it doesn't seem practical - I don't know if this was to boost VW's image or to retain researchers and management (consider how much Facebook gave David Marcus to think about Libra for a couple years). But if you're the quantum hardware provider / SaaS then you'll take the call.
1) Does secure online browsing become impossible? 2) Does the entire crypto currency market evaporate?
Also would it be more advantageous / profitable for that country to publicize it or keep it a secret?
RSA and ECC cryptography could be broken, but (with a probably rocky transition period) we could move to other algorithms which are still secure.
Crytocurrency I'm not sure about.
I suspect probably keeping it secret - announcing it would push everyone to move from crypto you can break to crypto you can't.
The dumb companies are blowing through VC money trying to speedrun a quantum version of webvan.com.