How could reading the original blog post prove hallucinations??! Now you've moved the goalposts to defending your failure to read the original blog post, by denying it's possible to know anything at all for sure, so why bother reading.

So you STILL have not read the original blog post. Please stop bickering until AFTER you have at least done that bare minimum of trivial due diligence. I'm sorry if it's TL;DR for you to handle, but if that's the case, then TL;DC : Too Long; Don't Comment.