this post was submitted on 30 Apr 2025
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Unfortunately the limitations there are probably in the brain not the limb. For example, can you competentely do two things at once with each of your hands?
Fair, but do you have to manipulate them at the same time? Most of the time we use our hands to hold something, or do very simple repetitive movements. This doesn't require much brain power to do, and is still very useful. For example, such arms could hold our bags, while our natural ones can do whatever else.
Any random individual? Maybe not. But one man bands exist and are completely reliant on this concept.
Fair, although I was more referring to fully separate tasks, one could argue a one man band is still broadly doing things in sync and broadly the same mental task.
It is a valid point that it could be learned with enough practice and dedication, but I think going above two would be exponentially harder.