Quote:
	
	
		
			
				
					Originally Posted by  markem
					 
				 
				I like to ask grad students this question: 
 
What is the shortest distance between two points? 
 
 
 
 
 
 
You see, the average student immediately goes back to some half remembered statement from a 7th grade teacher but the question that they answer is "What is the shortest distance between any two points?" rather than the one I asked.  The answer to the question I asked?   Zero. 
 
Sorry I don't want to derail the thread, but I love the OP. 
 
It is as important to understand the question as it is to know the answer. 
			
		 | 
	
	
 I must not understand this question then. If the answer is zero then they are the same point, making it one point. I would argue the answer, a straight line, is correct to the question you posed, otherwise there are not two points. (I am an electrical engineer, just out of school, but I got the degree lol.)
Am I wrong?