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Biological time
Physical (Chronological) time
Physicists claim that time is reversible and physical
laws operate in both time direction. Yet some feel somewhat uneasy about
time reversibility. Entropy obviously cannot be reversed. It is equipped
with a time which points only forward. Now watch your aging neighbor, does
his appearance change as result
of entropy accumulation? Obviously
not, since even an old timer gets rid of some of his entropy. Schroedinger
believed that he does not feed on energy but on negentropy.
Differentiation
In the CA universe
time is irreversible Take our CA#2058, which is destined to evolve from
larva to adult and cannot retrace its history backward. Each of its states
"knows" who was its predecessor and what will be the structure
of its follower. Its current structure, depends on all of its past states. They
all are responsible for it and if one is missing or defective the present
CA will be different. In biology this property is called differentiation,
which cannot be reversed. Once fertilized, a zygote continually differentiates
and its properties emerge. In biology you cannot reverse the flow of phenomena,
which is impossible even in the CA. The concept of reversibility is simply
meaningless!
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The physicist will respond in
irony:"Give me any CA state and I shall run it in both directions".
This is an illusion, since the time which the physicist manipulates is the time of the observer.
Yet each state of the CA has its internal time which it carries and updates
from state to state. It is independent form the observer's time. It may
dilate and shorten without any relationship with the outside world. It
is even more relative than Einstein's time, and is called here biological time. From now
on the arrow will stand for directed change, or differentiation.
Consider now our expanding
universe. Does it really follow the relativity model?. Perhaps the Big
Bang was a seed of a CA which expands in the same manner as CA#2058 does. A universe which differentiates,
and we differentiate in it.
Further reading:
WOB computer
Physics as fable