So we've talked in a previous lecture
about how conserved the ribosome was
we've talked a little about how it may
have evolved through deep time to become
this more and more complicated structure.
But a more physical question that we could
ask about the ribosome is how efficient
or good is it at what it does. And so,
one perspective on that is this idea of
Landauer Bond. So what Landauer Bound
is in the physics community, is a way of
saying take a particular abstract
computation and tell me what is
the minimal amount of energy that
any physical device could use to implement
this abstract computation.
And what that turns out to be
in a general sense is
Boltzmann's constant
times Temperature times the change in
the entropy over the course of this
computation.So the Initial entropy at the
beginning of the computation minus the
final entropy after you've performed all
the computations you care about.
So we can take the ribosome and use
this perspective to say something about it