OP forgets that Kary Mullis did most of his acid binging in the 70's and invented PCR in the 80's. So even if it did turn him into a crackpot, it didn't prevent

OP forgets that Kary Mullis did most of his acid binging in the 70's and invented PCR in the 80's. So even if it did turn him into a crackpot, it didn't prevent him from doing useful work.