do you believe in the “gray goo scenario”, its nanotechnology where microscopic machines are created from skin cells

Question: do you believe in the "gray goo scenario", its nanotechnology where microscopic machines are created from skin cells and are controlled by one's mind, and do you think self replicating nanobots could really be possible?
- Keywords:
  cell,
  gray,
  microscope,
  nanoscience,
  skin
Asked by Brianna K to Triona on 17 Nov 2014.
- Tríona O'Connell answered on 17 Nov 2014:
  
  I’ve not heard grey goo described like that before. Usually it’s self replicating mindless nanobots that consume anything and everything around htem. I don’t think we’ll get good enough at nanotech for that to happen (or if we do, the scientists have read enough scifi for that to happen).
  My boyfriend reckons that teh closest we are to grey goo is swarms of locusts, reproducing, eating everythign in sight even other locusts (and not bothering to wait for them to die)

Question: do you believe in the "gray goo scenario", its nanotechnology where microscopic machines are created from skin cells and are controlled by one's mind, and do you think self replicating nanobots could really be possible?