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Quantum computing - next tech gold rush or not?

4,433 Views | 39 Replies | Last: 39 min ago by ABATTBQ11
knoxtom
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So now that we all know kinda what QC is, you have to ask the next question... is it ripe for investing.

I would argue that with the exception of Google, it is not. While I fully understand a company does not need to make a profit to be a good investment, I don't see where anyone has shown a path to a profit yet. Or even a pathway towards anything commercial.

Heineken-Ashi
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knoxtom said:

So now that we all know kinda what QC is, you have to ask the next question... is it ripe for investing.

I would argue that with the exception of Google, it is not. While I fully understand a company does not need to make a profit to be a good investment, I don't see where anyone has shown a path to a profit yet. Or even a pathway towards anything commercial.


AI still doesn't have that great a path to profit. It's been winning on multiple expansion mostly. The biggest winners outside of NVDA and a small handful of others have been server providers / installers and liquid coolers. So it's chip and server makers and the companies that support them. The actual utilization of AI isn't generating much of anything. Quantam is much farther away.
Eliminatus
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AG
knoxtom said:

So now that we all know kinda what QC is, you have to ask the next question... is it ripe for investing.

I would argue that with the exception of Google, it is not. While I fully understand a company does not need to make a profit to be a good investment, I don't see where anyone has shown a path to a profit yet. Or even a pathway towards anything commercial.


In comparison to everything else available? I don't think so either. QC is in the realm of supercomputers. This is not going to be a household technology in our lifetimes. So state and commercial application only at this point. State is out, so investing in the commercial companies on the pioneering path themselves is the only viable solution I see for us peasants to gain anything from it. IMO at least.

ETA: Misread your post. As far as commercial applications goes, not sure either. Banking is the one that pops into mind at first, because they are the ones most at risk of QC. Now, I don't if QC can stop QC from decrypting our best stuff to date. Kinda doubt it tbh, but I am sure Big Bank is going to try regardless.

Benefits to research is a given. So the trickle down effect from that is...pretty much whatever you can imagine. Pharmaceuticals was my first thought. Physics, Materials Science, etc. Granted all of this will take time, probably a long time.
VitruvianAg
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AG
ABATTBQ11 said:

VitruvianAg said:

I saw a short video on IONQs quantum entanglement of qubits.

quantum entanglement processing allows for instantaneous communication between computers regardless of distance.




That's... not exactly how it works.

To pass information from sender to receiver, you need to be listening for information on one end because you don't know if or when the other end is talking. This is why walkie talkies are always listening and require you to press a button to transmit. So, you need to be "listening" to entangled particles to see if the other end is passing information, but you can't "listen" without also affecting your end of the entangled particles and the measurement you get while listening is random. The result is that you can't actually tell if someone is trying to send you something because the act of listening would step on their transmission by interfering with your end of the entangled pair. Think of it like a walkie talkie where the volume and transmit button are the same, so as soon as you turn the volume above 0 to listen, you're squashing anything incoming.

Now, information can be passed through quantum teleportation, but that also requires the passing of classical information. The sender needs to perform operations on the qubits they're wanting to send and their side of an entangled pair of qubits to determine information about their state that is passed to the receiver who uses that information to determine the original state of the teleported qubits they now have. Think of it like being able to instantly transmit a file, but the file is encrypted and you can only get the encryption key in an email.
Okay, I didn't intend to say "communication between"... With QE there is no need for sending back and forth with my Black Hole example. Never mind the enormous complexity and that we're light years from a black hole.

What entangled particle(s) in one machine do(es) the other does simultaneously. There is no information exchange.

It's magic... I don't care to get into the whole Heisenberg uncertainty principle, I understand it's validity.

And your description above (similarly described by others on teleportation) isn't the type of teleportation we all care about...

Dang, just keeps going up, 20 points since I bought my measly 10 shares.
ABATTBQ11
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AG
knoxtom said:

So now that we all know kinda what QC is, you have to ask the next question... is it ripe for investing.

I would argue that with the exception of Google, it is not. While I fully understand a company does not need to make a profit to be a good investment, I don't see where anyone has shown a path to a profit yet. Or even a pathway towards anything commercial.




Kind of depends on your time horizon and whether you think it's at the level of Hollerith machines or UNIVAC.
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