Hey whoa I saw what Asgore said about how many times it takes! Does that mean you're going off the possible theory that Asgore knows about resets, or at least someone taught him what to look for?
Half and half!
He knows about humans powers, that they can come back… They can die
We know this by how he reacts in the game:
* You tell ASGORE that he’s killed you once before
* He nods sadly. [When you keep dying]
* He nods grievously. [+More]
* He nods pitifully. [Even more]
He never reacts by surprise or confusion
In fact, it seems he’s long since been aware… Since Chara can remember hearing this on their deathbed
You cannot give up just yet…
He actually expected that if Chara held this power… They would come back too.
However, Asgore won’t react any different if you save just before the garden, He will continue his same route/speech each time. Which seems to indicate that he does not remember resets.