No you cunt. He was not worn out.
You are confusing being invincible ala buu with energy.
If he took NO DAMAGE in that fight he would be able to fight indefinitely without tiring.
But he was taking damage and even though he had infinite energy he was getting taken apart.
I don't understand how this simple fucking concept eludes you. >>155956466
Don't try to make sense of it. It's fucking stupid.
NO having infinite stamina would not make it so that he can train forever and not need to fucking rest and recoup.
And NO he can not get exponentially fucking stronger over those years. WHY? Because all of his fucking power comes from his goddamned technology.
He can't fucking train himself to get stronger. He can only be upgraded.
AT BEST he'd be able to train his human parts and gain better use of his infinite ki abilities and learn techniques that only someone with his unique powertype can pull off.
HE AM STRONGER CAUSE TRAINAN AND HE ALL OF A SUDDEN IS A WORSE FIGHTER!
Oh and Goku completely fucking forgot about Uub and had to have Dende tell him about him. Even though he told Vegeta about the kid at the beginning of the fucking anime!