Warning: this article contains SPOILERS for Avengers: Endgame!
Avengers: Endgame wrapped up Steve Rogers’ MCU journey on a very definitive note, ending with Steve travelling back in time to return the Infinity Stones to their proper places and choosing to remain in the past so he could finally have that dance with Peggy Carter.
This ending raises some big questions regarding the nature of time travel in the MCU and how it was even possible for Steve to stay in the past without creating a massive paradox. But directors Joe and Anthony Russo are adamant that Steve’s decision makes sense, and that there’s more to the story than fans saw in the film.
Source: IGN.com Avengers: Endgame Directors Shed Light on the Ending