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Would that be better accepted by the public or robot buyer?

The entire built environment to date is designed for humans

It’s the same reason why companies are throwing money at a self driving car which can coexist with manually driven cars, rather than building roads specifically for autonomy

Why build autonomous roads? Just invest in modern railways at that point.

Because building anything infrastructure related in the US, especially for rail, is a such a Sisyphean task that it might actually be cheaper to just build an autonomous vehicle

What's that got to do with vision? They could have given it more cameras to avoid having to have a head to turn. That was OP's point.

They're responding to the person recommending octopus robots, not the vision comment.

Six more arms would be considerably heavier. Especially wasteful if, often, six of the arms are not even doing anything.