There is absolutely know way of knowing. So far we only intelligent civilization that we know of is our own. We have no idea of how common life is in the universe, let alone intelligent life. The number is probably too high for the observable universe. If there are 12.6 quadrillion civilizations in the observable universe of 100 billion galaxies, that gives us an average of 126,000 civilizations for an average galaxy. Since our galaxy has more stars than most that would suggest that there are several hundred thousand civilizations in the Milky Way, perhaps over a million. Suggesting so many civilizations exist in our galaxy would invoke the question of Fermi's paradox: where is everybody?
In my opinion, yes. There are at least 10,000 trillion sentient species (100,000 per galaxy) in the observable universe.
70 trillion trillion.
10,000.
It is 10000000000000000.
1,000,000,000,000 (or 1 trillion)
100
10000 x 300000000 = 3000000000000
To make 100 billion separate books of all of the information of 10,000 trillion sentient species (100,000 per galaxy) in our universe, you would need to begin by researching each species. Then combine the information using a computer.
You can make 100 billion separate books that has the descriptions of about 10,000 trillion sentient species (100,000 per book) by simply orderly compiling them.
0.0031
about 320 million years.
No, it is placed four places to its left.