Comment by porridgeraisin

Experiments are repeated if someone else is looking to expand on the work actually... it's just that if it doesn't work, no one wants to go to the effort of publishing that since it's a lot of effort and there'll be politics with the original author and there's the possibility that it was just a "push it through to satisfy the metrics" paper that every researcher "allows" every other researcher purely out of sympathy and there's the review process and deadlines and rebuttals and more deadlines and...

I suppose if you only value this entire end to end process then the experiment is not being repeated at all, but yeah, most things just get discarded when they don't work.