How does non-living matter become alive?
The concept of biological evolution dominates in the scientific world, according to which the first life originated by itself from inorganic components as a result of physical and chemical processes. The theory of abiogenesis describes how life comes from inanimate matter. However, it has a lot of problems.
It is known that the main components of living matter are amino acids. But the probability of a random occurrence of a certain amino acid-nucleotide sequence corresponds to the probability that several thousand letters from typesetting type will be thrown from the roof of a skyscraper and folded into a certain page of a Margaret Mitchell novel. Abiogenesis in its classical form suggests that such a “dropping of the type” happened thousands of times - that is, as many as it took until it formed into the required sequence. However, according to modern estimates, this would take much longer than the entire universe exists.
At the same time, all attempts to create an artificial living cell under laboratory conditions have never been successful. A complete set of amino acids and nucleotides and the simplest bacterial cell are still separated by an abyss. Perhaps the first living cells were very different from those that we can observe now.
Also, a large number of scientists support the hypothesis that the first living cells could get to our planet thanks to meteorites, comets and other extraterrestrial objects.