It sounds like an unsupported belief in the possibility of the "revolutionary" progress of technology which would still save the humanity in its present desire to keep "business as usual."

I'm not optimistic about that. The way I see it, the premises on which the world currently runs are unsustainable, and there's no technological miracle that will change that. Fusion is very improbable, fission can't support the growth that people got used to during the last 100 years, fossil fuels are clearly very limited, the amount of food which can be sustainably produced is limited, etc.