The people pimping Mahomes as the future GOAT, or even asking if he could be that one day, are only setting him up for failure as that puts him in that "GOAT or bust" box, so to speak.
I will say this, though: the longer Andy Reid is his coach, the better. I see a lot of Favre in Mahomes (the player, not the POS Favre is off the field), and with the sorry state of coaching in today's NFL, Mahomes' gun-slinging could easily result in a lot of INTs in the future if he gets a coach who isn't as good as Reid, just like Favre threw a lot more of them once Holmgren left GB.