You must construct additional Infinity Stones

Be ye warned: HERE BE ENDGAME SPOILERS

I don’t see how this will make a 3-hour movie more aerodynamic, but I’ll take it anyway.

I don’t normally do Fridge Logic/plot hole/nitpick posts, and I really think Endgame is a very satisfying movie with good character arcs that basically nails what it wanted to accomplish. All that being said, something just occurred to me that seems kind of significant.

To begin with, I liked the unique take on time travel that Avengers: Endgame uses, before discarding it in the last scene so Cap can farewell Sam.*

But I just realized that there’s another hole in the (mostly) happy ending for the world.** Didn’t we learn in this movie that Infinity Stones were kind of important to maintain the fabric of reality? And there just aren’t any here any more?