> I don't know where to look to confirm that can current computers do 1 billion MIPS (Million Instructions per Second?) as predicted by this article?

An RTX 4090 has AI compute of up to 661 teraflops in FP16[1]. FLOPS and IPS are not interchangeable, but just for fun, that's 6.6 * 10^14 FLOPS, which is just short of 1 billion million (10^15).

1. https://www.tomshardware.com/features/nvidia-ada-lovelace-an...