How?
* Moores Law is almost over. The 5090 improves over the 4090 mostly because of quant improvements.
* even if the hardware improves, there’s a huge incentive to slow roll the next generation. Nobody wants to end up like Sun Microsystems. Sun’s used hardware was faster than its new hardware, once you considered price. Sun ended up competing with its own used equipment.
The most obvious place for improvement is RAM, network and storage.
If someone can bring more RAM onto the market, that will unstick things.
There is significant room to make more specialized neural network accelerators with new compute-in-memory architectures.
If the brain can run 86 billion neurons on 30W it must be possible.