In two previous posts I dealt with the relation
between the
multiverse theories and the problem of fine tuning, noting that those
theories do not solve the problem. This third post describes briefly what is
the fine tuning problem.
 |
| Brandon Carter |
In 1973 Brandon Carter formulated the anthropic
principle, a name later deplored by its author, because it may
be prone to misunderstandings. This principle is simply the verification that
the universe must fulfill all the conditions necessary for our existence, since
we are here.
Over a decade later, John Barrow and Frank
Tipler published a book entitled The
anthropic cosmological principle, which offered a stronger version of
the anthropic principle, posing that the values of many of the universal constants
are critical and minor variations would make life impossible. This finding
raises the fine tuning problem, based
on the analysis of the possible effects of changing the values of those constants.
In other words, the universe seems designed to make life
possible. Let’s look at a few examples:
