I didn't say the problem couldn't be solved. I said the problem can't be solved by one person. There is a difference. (maybe it can be solved by one person over a few decades)
your initial comment above focuses on the difficulty of the task, I didn't see mention of the need for collaboration to solve it.
maybe you had that in mind? the comment doesn't spell it out though...
If it's really bad, at least the easy 20%.