Why has computing has not advanced past the sixties?

Computer science, which has little to do with either computers or the scientific method, has progressed (or at least, laterally drifted around), of course, but computing has not. By that I mean the physical implementations of machines that can perform the process calculi that computer science dreams up. Back in the sixties, there was already talk of crafting binaries that contained data dependency information so that the processor could do unrestricted out of order execution. We still don't have that, despite overcoming the memory limitations of that time many times over. So many promising new innovations, but few even tried.

Are engineers just lazy? Did IBM, Intel, and Microsoft intimidate everyone enough to never focus on anything but their shitty, low-end trash?

A lot of relatively recent parallel computing theory is now applied to GPGPU. Kiketel is now putting FPGA on some of their chips. Too bad they cost $50k each, but hopefully the price will come down and AMD will offer something similar (unlikely though, since they are fabless) (and ARM competes for pennies for phone contracts, so they won't do it ever), so we may one day be able to experiment with little Lisp machines in hardware. There was Cell, but Sony let it die and most programmers are idiots who never realized it's potential. Now the market for supercomputers is dead outside of weather forcasting and other government shit, so neat new paradigms are unlikely to be tried since even the most minute differences in floating point treatment ruins weather models. They may see a comeback for intensive, non-paralellizable cases, but otherwise the trend of throwing tons of the cheapest shit at the problem is probably going to continue. Dataflow is dead and will remain dead until realizes the usefulness of it in databases Oracle patents it and starts selling $50M machines to idiotic people who need a 5% speed increase in their queries.