It was kind of disappointing to see the transition from fancy, glamorous shots of it standing still and looking around/at its hands to plodding slowly and cautiously (I was kind of reminded of walking in ski boots?) across a flat, open floor.<p>I understand <i>that</i> bipedal walking is hard, but I don't really understand <i>why</i>. Is it a materials thing? Do you need the right kind of stretchy tendons and ligaments to produce more fluid motion? Is it a sensor thing, about having the right kind of signal to inform control for dynamic balancing? Is it about having a lot of different degrees of freedom in your toes/feet/ankles to achieve balance, which aren't yet feasible in robots?
Not to be confused with Figure 1 [0] which you should q.v. in case of any complaints.<p>[0] <a href="https://www.dourish.com/goodies/see-figure-1.html" rel="nofollow">https://www.dourish.com/goodies/see-figure-1.html</a>