The collisions

The history of the material of our drop is

in reality nothing other than the story
of a great many consecutive collisions.

If every particle that makes up our drop

has suffered so many collisions

then how many collisions have
determined the history of our drop?

It would be not easy, and it is not the purpose

of these considerations, to find the true
number of these collisions.

Only one thing is for sure.

It would not be sufficient to multiply the number
of particles in our drop with the number
of collisions suffered by each particle.

That would just be the sum of the collisions

suffered by all the particles in our drop.

Πλαίσιο κειμένου: But this is only a very small part 
of the number of collisions which determined the fate of our drop.

In order for the result of a collision to be exactly determined

the motion of each of the participating
particles must be completely defined.

This movement however is affected by the last collision

with another particle, which most likely is not in
our drop, and whose movement is shaped through
its previous collisions with others "foreign" particles
and so on.

Πλαίσιο κειμένου: So the number of collisions 
that shaped the history of our drop 
is very much higher.

If, as we accepted it, there exists

a deterministic sequence from the
beginning of the Cosmos to the moment
when we consider the drop,

the outcome of all these collisions must be

exactly determined with absolute
mathematical accuracy.

If only the smallest uncertainty

existed about the outcome of the collisions

the result would be different.
It would not be deterministic!

Now that we have studied in greater detail

such a simple phenomenon as the fall of
a raindrop, the conclusion to which our
decision to accept the absolute accuracy
in the power of Natural Law led us,
begins to seem unbelievable.

Were we perhaps a bit rushed to
reach this decision in chapter 5?

Maybe it would be advisable

before we take such a serious decision about
the determinism in Nature, to deal in more detail
with the predictability of collision which is shown
to be the major cause of the phenomena.

Before doing this, however,
let's take a look at the second example.

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