All organisms communicate information with their cells using signaling molecules. Add up all these communications, and it's the equivalent of 10^24 bits per second, which is an incomprehensibly large amount. Humanity's digital communication only amounts to 10^15 bits per second, nine orders of magnitude less. However, humanity's information transmission is growing exponentially, and according to a new study, it should catch up within 90 years. These estimates could help astronomers search for technological civilizations more advanced than us.
Life on Earth is a glorious dance of data. From the songs of backyard birds to the chemical exchanges of forest trees, the exchange of information between living things is an essential part of its existence and evolution. Humans, too, are a part of that dance, with friendship chats over morning coffee, bold headlines in newspapers, and TikTok videos of teenagers. Right now human data is just one part of Earth’s living data exchange, but it could soon become the overwhelming dominant part.
Although it would be nearly impossible to get a precise measure of the rate of data exchanged between terrestrial organisms, you can estimate the rate as an order of magnitude. One way to do this is to look at the number of living cells and their data exchange since they constitute the bulk mass of life on Earth. Based on several studies, the total number of prokaryotes, such as bacteria, amounts to about 10cells.
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