[dinfinity]

I agree that the main limitations are going to be in hardware.

An important question however is "how many sensors do you really need?"

Remember that humans have a lot of requirements just to not die. Robots don't have to care about being bit by insects, eaten by predators, or getting cuts in their skin that get infected. Getting damaged in any way just isn't that big of a concern. Ad a result, there is just a lot of robot 'skin' that doesn't need touch (etc.) sensing at all.

For the parts where it does matter, it's undoubtedly going to be the case that we can get 80% of the way there with 20% of the sensory information. Additionally, robots are not limited by the glacial speed of signals through nerves (100m/s max), but can leverage all other sensors and associated computation to compensate for 'missing' information.

Still, there's going to be a lot gained with good robot 'skin'.