Those sorts of things are currently available and aren't much like a mining rig. Deep sea mining rigs don't really manipulate the nodules so much as hoover the

Those sorts of things are currently available and aren't much like a mining rig. Deep sea mining rigs don't really manipulate the nodules so much as hoover them up - there wouldn't be as much backlash if it was just picking nodules up. There's a picture of an early rig here: https://blogs.noc.ac.uk/jc241-smartex/prologue-smartex https://blogs.noc.ac.uk/jc241-smartex/prologue-smartex