3.76
There are clearly better and worse ways to respond to phenomena and there can, of course, be disagreements about this. But an error seems to need a shared disclosure or an isomorphic language-game (e.g., that of mathematics).
And yet, there’s a kind of fundamental error or fundamental mistake. If responsibility is an attempt to respond adequately to phenomena, which includes responses by others, then omitting a sufficient attempt to see how others encounter phenomena is an error (i.e., it mistakes what’s there) and a bad way of responding.
(If you revisit §2.76, you’ll see that an error such as a fundamental error is grounded in phenomena; yet, as error, it’s only partially grounded.)