“I wonder if the kid even knows the word?”
Of course not. Maybe 5 out of 100 college graduates would.
But regarding the assertions of solipsism, it is true that only one’s mental experience and God can be certain to exist.
This is a good Wikipedia article:
https://en.wikipedia.org/wiki/Solipsism
My favorite part is this Greek guy:
“Solipsism was first recorded by the Greek presocratic sophist, Gorgias (c. 483–375 BC) who is quoted by the Roman sceptic Sextus Empiricus as having stated:[8]
Nothing exists.
Even if something exists, nothing can be known about it.
Even if something could be known about it, knowledge about it cannot be communicated to others.”
lol