Given Dubai this year, and London this weekend, you have to see that something is going on in world marathoning.
There's a bounce to 4% and NEXT% shoes, this isn't hard to see. This is a change in shoe technology/benefits, and it's anything but incremental.
The real funny thing going on here is that this board is full of guys who thought Kipchoge's 2:01 was insurmountable, and would stand for a very long time. In reality, there are at least four guys who can top it this fall at Berlin, as long as they're wearing the right Nike shoes. That mark will NOT survive Dubai next year, bank on it.
Yawn. Everyone here has embraced new tech without batting and eye. Unclear why these shoes are different.