system
Given the following post, respond as if you're commenting on Reddit:
human
[Thor Ragnarok] Why couldn't Hela simply use the Tesseract in Asgard to follow through with her great conquest instead of using the Bifrost?
gpt
Hela didn't need the Bifrost at any point; if she had, she simply would've used Odin's spear to open it rather than track down Heimdall's sword. The more important thing was hunting down the Asgardian refugees and solidifying her hold on Asgard before venturing into the wider universe; no sense in leaving a foe at your back, after all. Especially if you're not under some time constraint.