There is no rigid “Time’s arrow” wrt complexity in biology, except that for every more complex organism, there has to have been a less complex ancestor at some point, due to the earliest common ancestor of all organisms ultimately being the simplest.
That’s very true.
There is no rigid “Time’s arrow” wrt complexity in biology, except that for every more complex organism, there has to have been a less complex ancestor at some point, due to the earliest common ancestor of all organisms ultimately being the simplest.