Now, drug development you might think of as a rather expensive but risky bet, and the odds of this bet are roughly this: they're 10,000 to one against, because you need to screen about 10,000 compounds to find that one potential winner.
Deve-se considerar que o desenvolvimento de drogas é uma aposta cara e arriscada, e as chances dessa aposta  são, a grosso modo, 10 mil para 1 contra, porque precisa-se pesquisar  cerca de 10 mil compostos para encontrar um potencialmente adequado.