Wow, I experimented with it more and it's a matter of context, just as you and other people in this thread have described. That's really striking. Thanks for confirming that it's not a bug.
This is maybe an even more extreme phenomenon (from the same subreddit that was apparently involved in making the Laurel/Yanny thing go viral this past week):
This is maybe an even more extreme phenomenon (from the same subreddit that was apparently involved in making the Laurel/Yanny thing go viral this past week):
https://www.reddit.com/r/blackmagicfuckery/comments/8jxzee/y...
With this video, I find that I consistently hear whichever phrase I'm thinking of at the moment! (In this case either "brainstorm" or "green needle".)
Edit: Also, if anyone in this thread likes this stuff then you might really enjoy
https://www.wnycstudios.org/story/91513-behaves-so-strangely
if you've never heard it before (or even if you have).