Some of the best Universe Theories

There are so many mind-blowing theories out there about the cosmos. Here are some of my favorite ones

This theory emphasizes that DNA is one of the most durable constructs in the Universe. If intelligent life were sending a message, it would be more effective to code it into our DNA rather than sending something like radio transmissions.

Essentially scientists are arguing that if there are cells in the human genome that cannot be explained by Darwinian evolution, that it is possible those cells are a signature or a designer tag.

Scientists also point out how amazingly logical the human genome is, they believe that something as straightforward and logical probably came from an advance being somewhere outside of the solar system.

2. The Fermi Paradox

The Fermi Paradox — named after the Italian-American physicist Enrico Fermi — can be summed up in a simple question that anyone looking out at the night sky has probably asked themselves: Where is everybody? Or, to put it another way, it’s a big universe, so why can’t we see life anywhere but here on Earth?

That’s the question that occurred to Fermi at lunch one day in 1950, after a discussion about UFO sightings. Unlike most idle daydreamers, however, he put some mathematical grunt into addressing the problem.

This was the technique he turned to the question of extraterrestrial life.

In outline, the argument runs like this:

There is any number of proposed answers to the question.

The most obvious is that we are alone: Earth is unique, or close to it, in having a life. Alternatively, large-scale interstellar travel may be impossible. Or perhaps intelligent life will inevitably destroy itself via nuclear weapons, or runaway artificial intelligence, or global warming, or something else.

Other ideas include the suggestion that we are not looking for the right kind of signs, or that aliens are so alien we cannot even recognize them as living things. Or perhaps other civilizations are deliberately keeping us in the dark until we are ready to join the galactic community.

Or perhaps another life is abundant, but living in subsurface oceans — such as that thought to be on Enceladus — unaware that anywhere, or anything, else exists.

The possibilities are endless, and speculation will no doubt continue forever, or until we find extraterrestrials.

3. The simulation hypothesis or simulation theory

It proposes that all of reality, including the Earth and the universe, is, in fact, an artificial simulation, most likely a computer simulation. Some versions rely on the development of a simulated reality, a proposed technology that would seem realistic enough to convince its inhabitants the simulation was real. The hypothesis has been a central plot device of many science fiction stories and films.

Many works of science fiction, as well as some forecasts by serious technologists and futurologists, predict that enormous amounts of computing power will be available in the future. Let us suppose for a moment that these predictions are correct. One thing that later generations might do with their super-powerful computers is run detailed simulations of their forebears or of people like their forebears. Because their computers would be so powerful, they could run a great many such simulations. Suppose that these simulated people are conscious (as they would be if the simulations were sufficiently fine-grained and if a certain quite widely accepted position in the philosophy of mind is correct). Then it could be the case that the vast majority of minds like ours do not belong to the original race but rather to people simulated by the advanced descendants of an original race. It is then possible to argue that, if this were the case, we would be rational to think that we are likely among the simulated minds rather than among the original biological ones. Therefore, if we don’t think that we are currently living in a computer simulation, we are not entitled to believe that we will have descendants who will run lots of such simulations of their forebears.

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