There is an episode where a new game is brought on board. It’s really enjoyable, and once people start playing, they don’t want to stop. Soon, the whole crew is addicted. It turns out the creators of the game are using it for mind control.

Seems like the perfect metaphor for modern cellphone/app usage.

https://en.wikipedia.org/wiki/The_Game_(Star_Trek:_The_Next_Generation)

What worked for me was I installed and ran Thunderbird, then I quit and copied the Google Takeout .mbox file to ~/.thunderbird/xxxxxx.default-esr/Mail/Local Folders. When I re-launched Thunderbird, it took a few minutes and then all my Google Takeout emails were browsable/searchable under Local Folders.

Also, I think there was a weird step involved, like I needed Thunderbird to connect to some email account, any email account, in order to get past the welcome screen.