What is the most ultimate energy source for 2019 and beyond?

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The discussion centers on identifying the ultimate energy source for the future, with a strong emphasis on solar energy as the primary candidate. Participants argue that the sun is crucial for sustaining life on Earth and should be the focus of energy harvesting and conversion. While acknowledging the current reliance on oil, there is a consensus that it will likely be phased out. Alternative energy sources mentioned include wind, waves, geothermal energy, and the potential of fusion energy, which is seen as a long-term solution. However, some participants express skepticism about wind and solar being sufficient, labeling them as temporary solutions. The conversation highlights the need for advancements in energy technology and the exploration of various sources to meet future energy demands.
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Thinking of 2019 and what kind of information we are being exposed of; What do you think is the most ultimate energy source that should be used from now on?
 
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Hi slomeim
Kind of a vague question, don't you think.

I would think that the "ultimate" energy source is still the sun, as it keeps the Earth at a reasonable temperature for plants and animals, including us, to be able to live on it.
 
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ESL. How we are harvesting, converting and using energy, oil is most likely not being used as a energy source in the future. Of course thermodynamics physics is involved. To clear it up; the sun. wind, waves or geo. Or some other energy source which is to cone?
 
Fusion and similar phenomena. Also some rather esoteric sources I can't discuss here now. Wind and solar are weak temporary solutions.
 
All energy humans have ever used ultimately came from fusion, so there you go - its fusion
 

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