Would technology have reached its full potential by 2300? Do you expect a superintelligence singularity by that point, quickly finishing off the rest of technological development? Or would it still be an uphill battle? If all tech has been invented by 2300, would it be in wide use by then? Obviously I'm expecting that some tasks will take a long time and of course cultural integration of this tech could be painstakingly slow at times knowing how humans are, but I bet all the basic principles and designs would be mastered by then. And superintelligence and divergence as a civilization only makes this more likely. Honestly I wouldn't be surprised if we get enough tech by 2300 that superintelligences can blast through the uphill battle of trying to discover new things, reaching the End of Science in anywhere from a year to a decade instead of thousands or tens of thousands of years. Heck you don't even need a progressive loop of intelligences getting better at making greater intelligences, you just need whatever the best superintelligence humans can create is, which is probably at least a million times smarter than us.