A car is a machine made from a bunch of parts. If you could upgrade those parts bit by bit, a car could run forever. You could look at the internet as a singl

A car is a machine made from a bunch of parts. If you could upgrade those parts bit by bit, a car could run forever. You could look at the internet as a single machine made from a bunch of parts. Those parts are distributed all over the place - but still. And unlike a car, the parts of the internet do get upgraded bit by bit. The internet has been running non-stop for decades, with no end in sight. You could regard dna-based life as a kind of machine - one machine, whose parts are the organisms which carry dna. These parts are distributed all over the place, and are continuously upgraded through evolution. The dna in every organism results from an unbroken chain of upgrades that goes back billions of years. So by this definition, there are machines that go on without end. And if you could change your perspective, drop your identity as a human organism, and instead say "I am dna-based life", then you are already immortal. Congrats! :)