The last two sentences should just be particles. There shouldn't be anything that reads them, interprets them, considers them agrees or disagrees with them. The reader should just be particles too. The question that gets avoided around here like the plague is: how can those sentences be either particles or sentences. Something must only be one thing, and that thing is what it is. It can't be two different things in the same context if any sense is going to be made.
what about spreadsheets? they calculate formulas, shouldn't there be no calculations because there are just spreadsheets... a collection of particles...
take a pet rock, is it a rock or pet?
human beings process information, if you can prove otherwise I would be interested.
AND you really didn't answer my question as to why physicalism shouldn't be the default position.