How come nobody knows how to convert the inexhaustible power of giant crashing ocean waves into usable energy?

Question

How come nobody knows how to convert the inexhaustible power of giant crashing ocean waves into usable energy?

Answer 1

Tidal energy (waves and all) is one of the alternative sources of energy considered in most of the alternative energy plans.  So your assertion "nobody knows" is invalid.

Check out the source.  Also browse "tidal energy source," you'll find a lot of web sites talking about energy from the ocean.  

I might suggest you check the web before making assertions that are unsubstantiated.  You know...do some research, you'd be surprised what you might find.