Everyone knows the importance of "keeping it simple" when presenting a case to a jury. In a complex case, however, a lawyer's mind can become so filled with complex ideas that keeping it simple seems impossible.
In On Trial, Henry G. Miller advises lawyers that "a lot of knowledge is a dangerous thing"--
Some lawyers are so full of knowledge that they've lost sight of the issues. Either we control knowledge or it controls us. The consummate lawyer's skill is to orient knowledge toward issues. It's tempting to accumulate knowledge without thinking about it. It's hard work to orient knowledge to issues.
It's not the knowledge itself that is so dangerous, but the inability to relate this knowledge to the issues in the case. If a fact won't aid a jury in resolving an issue, it might serve only to muddle your presentation. Consider leaving it out altogether.