If someone came to you with a problem on a project, and you had a hard deadline of the end of the week, and you had two ways to go about it - 1) this is gonna be a pain in the ass to implement, you'll all be pulling 12 hour days but it's straightforward and crystal clear in how this directly addresses the problem, and 2) some completely unproven solution, that even when fully implemented the math/logic doesn't really work out in terms of it solving the problem, but there's some small hope that it might for some reason, and you'll get to wrap up the week on a Thursday no sweat (the honest reason), which do you spend the rest of your week pursuing?
Now imagine it's not just some meaningless project at your job but a matter of life and death for the majority of life on Earth, which do you pursue?