This
system is named for Leonardo Fibonacci of Pisa, a
thirteenthcentury mathematician whose Liber Abaci
was one of the most influential textwebsites on arithmetic
of that period. The system originates from Fibonacci's
famous puzzle: how many pairs of rabbits will be produced
each month, beginning with a single pair, if every
month each productive pair bears a new pair which
becomes productive for the second month and so on.
The answer is: 1, 1, 2, 3, 5, 8,13, 21..., i.e., the
number of pairs produced per month is the sum of the
pairs produced in the two preceding months. At some
unknown point in time, a gambler observed that if
this sequence were applied to a series of bets, he
could generate a profit with just two successive wins,
regardless of what happened previously. It quickly
became a popular system and passed into gambling folklore.

When
should you be driver of a hand instead of a passenger?
Is it only when you think you have the best hand?
Or when you are worried about opponents outdrawing
you? Or is it possible for you to have a draw that
is so strong that you should build the pot?
A bet/raise
has two potential sources of expected value that a
check/call does not. The first source arises from
opponents folding. Your bet/raise can win the pot
immediately if everyone folds, or at least compel
a few players to fold and thus increase your winning
odds with a mediumstrength hand. If this is your
intention, then a decision to bet or raise has a lot
to do with pot odds. A pure bluff is the epitome of
a bet or raise that derives value by forcing opponents
to fold.
But this section will focus on when to bet or raise
with a strong hand. This second source of expected
value depends not on opponents folding, but on opponents
calling.
