Part of the reason why we slowed down in our progress in science is that we do not take risks like that anymore.
Now the risk takers are at private companies.
Now the risk takers are at private companies.
Stop paying attention to whatever source is leading you to believe scientific progress has slowed down. They're lying to you.
Innovation needs creativity and fast iterations, in our current setup that is incredible hard.
MRNA tech is a good example: It was stuck in limbo for ages due to safety concerns, COVID allowed people to ignore these and push forward.