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I don't think you understand fundamentally what matter or energy is, because there most definitely is a finite amount available to us.
At present, solar panels or similar devices are not very efficient and can potentially be developed to increase that efficiency, which science and technologists are working on all around the world.
However, there are two limits that we can't go beyond.
Firstly, the limit of the thermodynamic efficiency and the Shockley limits etc for the system being used, which in the case of solar panels is around 33% for single junction devices and around 89% for a theoretical inifinte layer device with light being concentrated upon it.
So we may well get from the current record of around 44% efficiency in the lab to 70-80% efficiency some day.
However, there is the second limit that is the most fundamental, that is the actual amount of energy contained in sun light per meter squared. There only is and will be so much energy in sunlight until the Sun starts to run out of fuel and then expand which for the time being we can ignore.
So for our purposes and the next million years or so, we can expect a maximum average of around 1,000Watts per meter squared. That of course drops as you move away from the point of apogee, ie head North from the equator/further away along the tilt of the earths rotational axis.
For practical purposes currently, we can look and and talk about the amount of solar energy we can potentially access as being so large as to be beyond the limits of any demand we can imagine.
The mistake is confusing the idea of 'for practical purposes' with absolutes and infinite amounts.
It is a mistake, because what is and what we consider 'for practical purposes' changes over time.
Not only does it change over time, but it changes over the scope of our perceptions and views depending on whether we think in terms of the individual, the local, the national or globally.
As an example:
- If I supplied an individual 1 billion eggs, for practical purposes that can be treated like and infinite amount of scrambled egg on toast breakfasts for that individual because it is more than they could ever eat in a life time.
- If I supply 1 billion eggs to a small town of 4,000 people, that's still 8 eggs a day per person for 80 years.
- If I supply 1 billion eggs to the whole planet, that's 1 egg for only one in 7.5 people once.
If your scope of experience and view of the world is limited to thinking in terms of your individual and local demands on resources, then you may well see that or treat 1 Billion Chickens is/as for practical purposes is an unlimited supply of eggs.
Globally however, 1 Billion Chickens could only provide 1 egg per week per person.
If one group or country has greater percentage of those 1 Billion Chickens than another, then they have more eggs to go around per person.
Of course you can say it's a silly analogy because we can simply breed more Chickens, but if the Chickens are merely representative of other resources such as rare earth minerals, land, precious metals etc, then you are left with no options. |
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