No time at all, in relative terms. Five years is a lifetime in the semiconductor industry.

As the Red Queen said to Alice: “Now, here, you see, it takes all the running you can do, to keep in the same place. If you want to get somewhere else, you must run at least twice as fast as that!”

It is even harder in authoritative regimes: it is very hard for them to deal with gigantic ultra high-tech R&D: comfy area, with a lot of resources, with tons of the "right" and "legit" competent engineers/scientist, positively motivated at working all together. It seems this is much harder to set up than the space/nuke industry.