system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] Thanos and his army are on their way and will launch an invasion of the planet within the next few weeks. How would you organise earth's heroes and powers to fight Thanos off?
gpt
We have a Time Stone and a Sorcerer Supreme with no qualms about using it.

With Doctor Strange utilizing it, it would be child's play to grab a few key pieces of technology (the fully-realized arc reactor, for example) and port them back to Howard Stark in the prime of his inventing potential.  Turn the arms race and energy race towards Thanos, and all should be well.