Discuss how flashback is present in the play Fences by August Wilson.

To a great extent, Wilson has created Troy's character as
representation of one large flashback.  Troy has not been able to sort through the
wreckage of his own past to make sense of the present and future.  This causes him to
live with one foot planted in the present and the other back in the past. It is for this
reason that Troy has no future.  Troy's flashback- based recollections of the past are
what impacts his parenting skills, as he is not able to shake off the abuse he suffered
as a child and revisit that upon Cory.  The ruptured hopes of his own dreams of playing
ball play a role in his intense opposition to Cory's hopes of pursuing football.  In
these instances, Wilson's construction of Troy is one done through flashback and one
that is done through the fact that the past is not really the past for Troy because he
has not properly understood it.  In these flashbacks, Wilson is able to convey the
despair in Troy's present, one that is sacrificed because of the power and pain of the
past.