And now we come to one of the most significant paradigm shifts of all, and this has to do with the nature of our biology itself.
We have long known that the growth and evolution of life has to do with genetic codes known as DNA. Human share DNA codes with every form of life on earth. Indeed, humans and apes share 99% of the same DNA, while humans and mice share 90%. The further apart we get the less DNA we share in common, but even so every species has more in common with each other than not, even if some have long gone extinct.
What exactly is this DNA? From the perspective of mechanistic biology, these are the building blocks of life, nucleic acids strung together in highly complex chains of information, which replicate according to fixed laws of biology. Just as atoms gravitate together to form molecules, so nucleic acids group together in specific patterns to create life.