Lol, thats a torture with those 2mm cameras
I personally wouldn't like to have those >_-
The complicated thing is "space", a void that surrounds planets, stars, etc.
The first thing is : how the heck space started to exist? Out of nothing? kkk, maybe Vegeta BigBanged, so space came to existing. ^^
What I mean, if such a complicated thing started to exist, and came out of nowhere, plus its endless, I think time machine could also be made just "pressing date a *puffff*, I'm there".
This world is full of posibilities. Its only a matter of time when one desired possibility gets found out and become used by people.