So if a pill makes a person get better, you'd just stop after n = 1?
How do you know it wasn't a fluke?
Don't be obtuse T'ai, you know precisely what Yahzi meant!
Now, wait a minute, let's humor the guy.
Yes, Tai, we stop after n = 1.
What happens? We make a new medicine after n = 1, and distribute it to the population. Lot's of people get made well, others sicker, others die. We say "opps, what went wrong????". Some bright person finally thinks to question the n =1 protocol for approving drugs, and bumps it up to n = 2.
What happens? Well, the released drugs under the new protocol have about the same effect at the n = 1 drugs, but some drugs were stopped from going to market, so it's a net improvement.
So some wiseguy at one drug company sets n = 10^10, while other companies set n = 1000, and do statistical analysis. Other's leave n=2.
What happens. n=2 company gets sued out of existance. n = 10^10 goes bankrupt before fielding a single drug. n=1000+analysis starts fielding reliable medicine.
Throw in some more iterations. Some drugs are going to require more testing, some less. In some cases we can predict that, in some we can't. Over time an enormous body of knowledge is going to build up, such that a PhD is required just to master it all. Naturally, there will always be mistakes. Some tests will be too conservative, and cost the company money, or harm people by not gettting drugs released in times. Other times drugs will be released too soon. Yet all we need to do is look at the current system to realize the methods in place are
pretty decent. We still work to improve them.
Cause thats how reality works. You try to go counter to it, and it bites you.
Surely this clarifies how science works, and how there is no defined stopping point.