In today's world you really don't have any excuses to not at least come up with an educated answer. Most people have smart phones now, not all, but most so all you have to do is take your phone out and Google whatever problem you may have. Now I know Google may not always have the answer it usually can get you at least a clue. For example i was just wondering how an underwater tunnel is constructed. I simply took my iPad out and googled "How is an underwater tunnel built" and i got a surplus of answers and methods of how they're made! So that is why learning is become easier because information is so easily found.