Hydraulics make mechanical sense, and most of us want out robots to look and act like robots.
But if you want to go all Blade Runner, then you need to mimic the human body more, which means muscular movement.
Creepy as, and being developed, which presumes it will be fully achieved one day:
Protoclone, the world's first bipedal, musculoskeletal android. pic.twitter.com/oIV1yaMSyE
— Clone (@clonerobotics) February 19, 2025