[MagnusWootton]

I was just brainstorming again,  every day, for the past 6-7 years or something???  going 1 mile an hour.

But I think that with a gyro and accellerometre, you could actually a get a robot to realize its environment without a camera,  just by it testing its obstructions when it moves!  even moving objects, but they are stay as permanent last guesses.

Thats kinda nifty,  but the more important thing, is I think that even robots with cameras need to do it too, and they become more adaptive. (can solve more environments) If they can also feel around,  because when you get close to things, or you get snuck up from behind!! you need a way of seeing when your camera doesnt work anymore!  and close proximity is how it works anyway.

  * everything is fully occluded up close to things!  - so upclose seeing stops and feeling starts!
  * unless you have a camera in all directions, theres a huge 180 blind spot on your robot, where it could end up a fly against a window, not knowing whats happening to it, no metric, no success.

[yotamarker]

yes utilizing gyro or an accel meter will benefit a robot
and would suffice for some.

https://www.yotamarker.com/t369-pid-formula