what is the hardest parts of robotics

Question: what is the hardest parts of robotics
- Keywords:
  robotics
Asked by lbaucherel05 to Nick, Jun, Jacob, Anna on 19 Nov 2019.
- Nick Hawes answered on 19 Nov 2019:
  
  The hardest part is usually enabling the robot to deal with the dynamics of its environment. This typically involves sensing/perceiving parts of its world (humans, objects, furniture) and understanding/predicting how they will behave in the future. This is hard because sensing technologies are often noisy (i.e. provide unpredictable results).

Question: what is the hardest parts of robotics