Most of the cost of a phone isn’t the processor, so probably closer to x1000. Hardware may get that much cheaper, but it was never guaranteed, and we’re not making progress as fast as we used to.

log(300) / log(2) = only 8.2 doublings away. That's near future material.

Maybe at 90s hardware growth rates, but not now.

The dream of the 90s is alive in the GPU market: https://aiimpacts.org/2019-recent-trends-in-gpu-price-per-fl...

Moore's law didn't stop, just Dennard scaling. Expect graphics and AI to continue to improve radically in performance/price, while more ordinary workloads see only modest improvements.

GPU TDP seems on the verge of going exponential, cost per transistor isn't really decreasing so much at the very latest nodes, and even that article seems to suggest it'd likely be decades before 300x flops/$