Spoiler Thread: Avengers Infinity War

I think when you look at Captain America 'stopping' Thanos' hit, He's not really holding him back, Thanos is more curious/amused at how hard Cap'n is fighting. He's not struggling against Captain America. He's sort of observing. But then again, looking at his face, he's maybe giving some effort there.. or angry about it. hard to tell.

But I think Thanos was giving his all against Hulk. Thanos didn't mess around with him.

So I think the “let him have his fun” line before the Hulk fight insinuates Thanos was legitimately just letting Hulk get a few hits in before “having his fun”. But this is all going deep into theory at that point.

I also don’t know if the stones actually augment Thanos’ physical strength, so I’m also making an assumption there. I just kinda assumed the more stones he had, the stronger he is. The music (when Thanos teleports into Wakanda) is what led me in that direction.