It would be wrong if it were a logical deduction instead of an inference. That is, if WrongBot actually wrote 'therefore' or otherwise signaled absolute deductive certainty then he would be mistaken. As is he presents it as evidence, which it in fact is.

It isn't even evidence until you include a premise about the likelihood of y, which we agree is the implied premise.

There is a clear implied premise 'psychic phenomenon are well known to be bullshit'. Not all baseline premises must be supported in an argument. Instead, the argument should be considered stronger or weaker depending on how reliable the premises are. I don't think WrongBot loses too much credibility in this case by dismissing psychic phenomenon.

I think I'm just restating the exchange I had with komponisto on this point. Goertzel's position isn't that of someone who is doesn't know any physics or Enlightenment-style rationality. It is clearly a contrarian position which should be treated rather differently since we can assume he is familiar with the reasons why psychic phenomena are 'well known to be bullshit'. It is a fully generalizable tactic which can be used against all and any contrarian thinkers. Try "Robin Hanson thinks we should cut health care spending 50%, therefore he is less likely to be right about fertility rate."