Scarce any problem will appear more hard and difficult, than that of determining the distance of the Sun from the Earth very near the truth: but even this... will without much labour be effected.
Sentiment: NEGATIVE
It's feasible that we'll meet other sentient life forms and conduct commerce with them. We don't now have the technology to physically travel outside our solar system for such an exchange to take place, but we are like Columbus centuries ago, learning fast how to get somewhere few think possible.
Today's voguish threats, including climate change, population growth, massive war, and resource depletion, are all amenable to a fix if we act prudently. And even if we don't, these problems are incapable of obliterating all of humanity, let alone destroying the Earth. No, the real End of Days will happen slowly, as the Sun ages.
The more that energy costs, the less economic activity there can be.
Human beings will line up for miles to buy a bucket of catastrophes, but don't try selling sunshine and light - you'll go broke.
Solar will outcompete other technologies.
I have no doubt that we will be successful in harnessing the sun's energy. If sunbeams were weapons of war, we would have had solar energy centuries ago.
Some wonder whether some day we will arrive at a theory of everything and run out of new problems to solve - much as the effort to explore the earth ran out of new continents to explore.
I will venture to say that sending a probe to the center of the earth will be more difficult than putting a man on the moon or sending a spaceship to Mars.
Stars are extremely far apart. We cannot imagine any way currently available to get to the nearest one, besides the sun.
For greed all nature is too little.
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