system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] Question about the stones in Endgame.

When Cap returns the Space and Mind stone they are no longer in their holders. Instead of a cube and a staff he is just dropping off a shiny stone. At both those points no one in contact with them know what an infinity stone is or that those things were infinity stones. 

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Wouldn't they still be looking for a cube and a staff unless Cap explained what happened, which seems unlikely? Does it accelerate understanding of the stones power and how to use it?
gpt
If he returns the Time Stone first, it's likely that the Ancient One could work some timey-wimey stuff on the stones to put them back in the containers they'd been in a few days prior.  That would allow him to clean up the timelines with minimal changes - the one major consequence being the 2012 timeline in which Loki is loose with the Tesseract.