The wave nature of matter
however We arrive at the same results
if we apply wave mechanics
which instead of using the concept of
accepts that the electron
has a wave nature.
simultaneously particle and wave.
Observing an object, say a glass,
we get the firm impression
it has absolutely definite limits.
Somewhere the glass ends
and the air begins.
The border is absolutely clear.
If we go very close, using a high magnification,
we expect maybe to find that the surface
is not as smooth as it appears to us, that
some irregularities are present, which
previously were not detected.
In no case, however, would we expect
that the boundary that separates the
glass from the air to be unclear.
is our mistake.
That the boundary where a material body ends is perfectly sharp,
is something we have assumed but haven’t proved.
Well, now it turns out
that this assumption was wrong.
In reality the situation is different.
The boundaries are unclear,
their kinetic condition
cannot be fully defined.
If it so, and (unfortunately or thank God?) it is so,
and the basic building blocks of the
Cosmos are by their nature "fuzzy",
then it is clear that the result of each
collision cannot be exactly
it impossible to draw a line, as we did it in Chapter 6,
back from the current state of the Cosmos to its beginning.
With each collision the degree
of uncertainty about the outcome increases
because to the uncertainty of the first particle is added
the uncertainty of those it collides with.
so many more collisions take place,
and so much greater is the freedom of the system.