The Ultimate Reality

Let us start with a simple,undeniable fact: some 4 billion years ago,life began on this planet in the shape of simple cells. These cells,perhaps one cell in particular, were the common ancestors to all life forms that followed. From that single source,various branches of life emerged. Some 1.2 billion years ago,there appeared the first multicellular creatures; 600 million years ago there emerged perhaps the greatest development of all- organisms with a central nervous system,the starting point that eventually led to the brains we now possess. From the Cambrian explosion of life some 500 million years ago came the first simple animals,followed by the first vertebrates. Some 360 million years ago we see the first traces on land of amphibious creatures, and 120 years ago we see the first mammals. Branching off in a new mammalian direction about 60 million years ago,and 4 million years later our most recent ancestor, Homo erectus. And just 200,000 years ago the anatomically modern human emerged,with more or less the same brain size that we now possess.
        Since all life forms are descended from this common beginning, they are all interconnected in some way, and we humans are implicated in this network. This is undeniable.
Let us call this interrelatedness of life the 'ultimate reality'