Will we ever shake our dependence on fossil fuels?

Please don't go in depth with all the different alternative sources of energy and alternative fuels. Let's go beyond that and answer whether or not we as humans have the will to make the switch where fossil fuels only make up a small portion of our energy sources. Let's face it, we already have the technological capability.

I predict we will in 50 -100 years

I'm sure we will some day. I don't want to be forced into changing too soon, but when the right alternative comes along, we'll all jump on board.

Too bad no feasible alternatives have surfaced yet, but when oil supplies start running low in a few hundred years, we'll have something else to take its place.

But until then, we need to drill for it at home so we don't make all our enemies so rich and powerful.