The folks at Boston Dynamics continue to leave me slack-jawed at what they're able to accomplish. They started as the Leg Lab at CMU thirty-odd years ago, then Mark Raibert moved on to MIT.
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If you want to know how well a broom works you do not ask the guy selling the broom or the guy who designed the broom, you ask the guy using the broom.
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( The opinions espressed in this post may not reflect the true opinions of the poster, and may not reflect commonly accepted versions of reality. ) (If you are wondering: yes, I DO hope to live to be as old as my jokes.)