<< Better word, unsupported insinuation. You didn't say it straight out, but
implied he has not by the tone of the phrase. Unsupported in that you did
not explain what you did (not) know about his experience in the area.
Without the explanation of that, it's left unsupported.
***** The support was supplied by his own words. Anyone should have been
able to recognize the point I was making. EVERYONE has heard the word
'experiment,' no?