system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] What if Tom Riddle hadn't been introduced to the Wizarding World?

What if Tom Riddle:

**A** - Still had his magic powers but never met Dumbledore and never learned about the Wizarding World.

**B** - Was a Squib and never learned about the Wizarding World, basically being a Muggle.

What would have become of him? How would things be different?
gpt
Even if Dumbledore never met him, Tom would have eventually been introduced into the wizarding world somehow. Someone else from the Ministry or Hogwarts would have noticed a young boy with magic and would have taken him. Their spells and systems are too good to let him escape notice. They have to be to maintain secrecy from muggles. 

But let's say your situation does come true:

a) His innate cruelty and malice would have had him explore his powers more and more. He'd know he was special and he'd find ways to dominate and hurt people for many years. The power would probably go even more to his head than it did normally, since he'd never know there were others like him. He'd assume he was much further above mortals so his already massively inflated ego would expand to untold heights.

However, he would eventually screw up. With no knowledge on how to create magical defenses against muggles and no knowledge on where to live and hide from muggles, he would eventually be killed by police or possibly military forces. Have no doubt, someone like him would run afoul of the law and would get caught. The fight to take him down might be a terrible thing, gaining news attention and the like, but he would eventually meet a bullet. 

b) He'd probably live a sad, normal life, expressing his dark side through hurting animals and people. He'd eventually be arrested and sent to prison. Depending on when he gets arrested, he'd either be locked away and left to rot, or given extensive psychological help. It probably wouldn't work, given his nature, so he'd die behind bars or in a psych ward's bed, pumped full of tranquilizers to keep him sedated.