Not even close. That same site says that Englebart first constructed a mouse in 1963, 5 years earlier than that demo. http://www.oldmouse.com/mouse/firstmouse.

Not even close. That same site says that Englebart first constructed a mouse in 1963, 5 years earlier than that demo. http://www.oldmouse.com/mouse/firstmouse.shtml http://www.oldmouse.com/mouse/firstmouse.shtml Englebart's work wasn't secret; various other people may have constructed their own mice after 1963, and yes, that sort of thing is interesting.