[js1138]

he has basically asserted something about black holes, grand unification theory, W+ particles, or what have you, and then stated in the very next sentence that we can't actually investigate the claims he has put forth, and won't be for the foreseeable million years or so.

Are you disconcerted that he would speculate, or disappointed by his honesty?

[Titus Quinctius Cincinnatus]

Are you disconcerted that he would speculate, or disappointed by his honesty?

I'm disconcerted that he asserts things as factual, immediately prior to admitting that there is no way to actually ascertain the factuality of them. That strikes me as more than speculation, and less than honesty.