When a man points a finger at someone else, he should remember that four of his fingers are pointing at himself.
~ Louis Nizer (February 06, 1902 - November 10, 1994)
Laparoscopy requires a different skill set than open surgery. Surgeons typically view patients from the outside in. When a laparoscopic camera is inserted, they see patients from the inside out. Hand/eye coordination is difficult to master. Practice on a simulator would allow surgeons to perfect their technique with no risk to patients.