Why quantum has been "10 years away" for 30 years | E2316

**Jason Calacanis** (0:00)
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**SPEAKER_2** (1:52)
Yeah, absolutely.

**Jason Calacanis** (1:53)
Oh, I got it.

**SPEAKER_2** (1:54)
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**Jason Calacanis** (2:32)
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**SPEAKER_2** (2:34)
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**Jason Calacanis** (2:37)
And you're with a company, Yakumo. Yakumo, which is spelt Y-A-Q-U-M-A. And you're building quantum computers.

**Kazuhiro Nakashoji** (2:47)
Hardware.

**SPEAKER_2** (2:48)
Yes.

**Jason Calacanis** (2:48)
Hardware. And hardware is hard.

**Kazuhiro Nakashoji** (2:51)
Hard, yeah, of course.

**Jason Calacanis** (2:52)
Hardware is very hard. Quantum computing has been five to 10 years away for the past 30 years. Why is it taking so long?

**Kazuhiro Nakashoji** (3:02)
That's a good question. More self-difficulty part is coming from hardware itself. Ah.
Yes. So we try to generate very special caricature units, QPU, quantum processing units.

**Jason Calacanis** (3:17)
Quantum processing units.

**Kazuhiro Nakashoji** (3:19)
Yeah. That's why you call it QPU instead of CPU.

**Jason Calacanis** (3:21)
Got it.

**Kazuhiro Nakashoji** (3:22)
Right. But it's really hard to create those kinds of things as a hardware. And we have to make it a bunch of number of QPU to do very useful caricature.

**Jason Calacanis** (3:32)
And from my understanding of Qubits, this is instead of one or zero.

**Kazuhiro Nakashoji** (3:40)
Yeah.

**Jason Calacanis** (3:41)
You get to have one, zero, or neither, one or zero.

**Kazuhiro Nakashoji** (3:47)
At the same time.

**Jason Calacanis** (3:48)
At the same time.

**Kazuhiro Nakashoji** (3:49)
Yes, same positions.

**Jason Calacanis** (3:50)
So you could have each of those positions simultaneously.

**Kazuhiro Nakashoji** (3:53)
Technically, yes.

**Jason Calacanis** (3:54)
Technically, yes. So explain to founders in technology who use GPUs and CPUs all day long, why is this the white whale? Why is this the holy grail of computing? Why is this the next paradigm?
Why is it so powerful?

**Kazuhiro Nakashoji** (4:13)
Thank you very much. So first of all, I think there is some big misconception about quantum computer. Okay. Once we use quantum computers, maybe people believe that, oh, maybe we can do more nice, very fast carication compared to CPU or GPU. But this is first of all, it's not correct. Yes, we can apply quantum computer for particular questions or problems. For example, combinations or RSA clip door. Yes. Those kind of difficult question.