Do Solar/wind power critics understand that these are evolving technologies getting more economical every day?

I asked about change and moral cowardice before and many talked about the dollar cost of today's solar power and how sometimes the wind doesn't blow or blows too hard. Can people in general ever see beyond their shadow to the possibilities out there if they decide to go get them.
Update: Meathead......and others, time is running out. Imagine your lifestyle with 80% less food and water or weather that can kill you, 3 times a week. This is something that needs some urgency. It will not be a convenient change that must be made, it will be a game changer.
Update 2: We start now. Every issue/problem is an opportunity for scientific, social, and economic gain. We do have to choose to start down this road though.
Update 3: robertC Thanks , I will read, I strive to learn daily.
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