system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] How did he know about him?

(INFINITY WARS SPOILERS). So when Tony meets Thanos, Thanos recognizes him and tells Stark "You're not the only one cursed with knowledge". What does he mean by that??
gpt
He has been observing and tracking the infinity stones for years. He was the one who had sent Loki to earth to get the space stone, and when Loki failed, Thanos found out who had stopped him. Thanos likely knows about all of the original 6 Avengers.