There’s some things about Loki in the Avengers that don’t add up.
In first photo he looks like he was falling through a space dumpster - but he was relatively OK.
In second picture, a year (or so) after he fell through abyss, he looks like a drug addict in desperate need of a dose. He is all sweaty, shaky, his eyes are hollow, he is pale, and stumbles when he walks.
Why would Loki exchange unlimited power (he knew exactly what the Tesseract was since it was once held in Odin’s treasury) that he could have used to get ALL the realms if he wanted to for just Midgard? It doesn’t make sense.
And in the end- when he said “I’ll have that drink now” after getting Hulk smashed, didn’t he seem different? Like he had snapped out of something?
What the hell happened to him?
Thanos, that’s what. I believe after Loki got a glimpse of the Tesseract, Thanos somehow learned about it and abducted Loki. Tortured, threatened, put put him on a “drug” of some sort- maybe the scepter or some other sort of energy, poisoned Loki’s mind.
Thanos’s influence brought out features Loki already had and made them grotesque- all his anger, pain, jealousy, thirst for attention, taste for mass destruction. Once done, Loki became a tool for Thanos.
The way Loki kept talking about freedom- wasn’t it suspicious? Wasn’t it like a subconsciousness cry for help?
(To those who think this theory is an attempt to vindicate Loki’s actions and make him “innocent”- it’s not.) The scepter’s control was not breaking a man’s personality and creating something new- no- it was bringing up characteristics of the man and making them extreme.