Gauge your audience
The classic dilemma facing scientific speakers is deciding at what
level to pitch a presentation when the audience consists of both
novices and experts. The most common error is to play only to the
experts, the rationale being that the experts’ opinions matter the
most and that everyone else in the audience will at least leave
thinking you’re a clever person. Wrong. If you make your talk so
technical that only a few can understand it, your audience will
resent you not only for wasting their time but also for violating the implicit contract that a speaker has with the audience
to always be clear and understandable.