I suspect that encryption will evolve like it always has. But if it doesn't, the modern world is over anyway. Bitcoin won't matter. It would be total chaos. Production would likely slow to a crawl that's insufficient to support most of the humans alive. Most critical services would be fucked (energy, water, emergency, hospitals, etc). We'd have to figure out how to be primitive again and I suspect most humans would die. Infant mortality would skyrocket again and the average human would be considered old at 40.

Is that what you need to hear? Lol