Finally, the big lessons that I learned yesterday were:

Do not underestimate the audience’s intelligence.
Wisdom of the crowd exists, never disrespects the collective minds.

Do not overestimate the audience’s memory.
Nobody remembers numbers and figures. Think of some the movies you like – how many actual lines do you actually remember? 1 or 2, maybe? But you still understand the entire story, don’t you?

I personally think the same applies to a relationship. Do not underestimate his or her intelligence, obviously. And do not always test and expect that your partner can recall everything. To err and to forget is human. An-Naas.