>friend tells me we can't know anything due to our perceptions being fallible
>mfw
>>1380364
Who is this geezer and why should we care about him?
>>1380364
How can we see if our eyes arent real?
Or something like that
Smack him in the face.
When he freaks out, act like you don't understand why he's upset, and pretend it didn't happen.
>>1380364
explain why ARST
>>1380364
Ask him how he knows that.