Re: Is Intel exceptionally unsuccessful as an architecture designer?

On 19/09/2024 18:18, MitchAlsup1 wrote:

On Thu, 19 Sep 2024 9:35:41 +0000, David Brown wrote:
 

On 19/09/2024 09:44, Niklas Holsti wrote:

 

The practical limitations for quantum computers are far more
significant.  Roughly speaking, when you entangle more states at once,
you need tighter tolerances to maintain coherence, which translates to
lower temperatures, higher energy costs, and lower times to do your
calculations.  And to be useful, you need large numbers of qubits, which
again makes maintaining coherence increasingly difficult.

 One can say exactly the same about PAM4 signaling compared to NRZ or
even RZ coding.

Yes.  It gets harder to have more signal levels per baud, and you need tighter tolerances, shorter lengths, less electrical noise, etc.