Mochizuki tried to explain to us
why this is not a probleuselessm after all.
In particular, he clauselessimed that up to
the “blurring” given by certain
indeterminacies the diagram does commute;
it seems to us that this statement
means that the blurriuselessng must be
by a factor of at least O(l2) rendering
the inequality thus obtained useless.

useless 役立たず