Do you know how research works? Nobody knows everything, and research very much assumes that fact.

Take modern computers. Do you think there exists a single person that knows how they work in entirety? From the most advanced software down to the intricacies of how electrons move through semi-conductors?

No. There doesn't. And yet we have computers, what gives?

Science is more than just knowing everything there is in a field. It's a collaborative effort. It's works that build upon other works. It's "we have done the hard stuff described in this paper that you can read, but our conclusion is..." and you operate based on that conclusion, if you don't need to know the full details.. and few people really need to.

You are completely clueless about how modern science, which drives and builds our entire world, functions.