It doesn’t matter what you’re teaching or how valuable your information is—your client is locked into a primal battle where your client’s primal brain wants to ignore you. Given enough time you will lose.
As an instructor this isn’t your fault. This is how we are programmed. The game is stacked against you.
It gets worse when you have to teach subject matter that is ‘related’ to your client’s wants but not exactly what they’re after. Your client doesn’t even realise they want to ignore you. If your lesson isn’t show stopping your client will want to ignore you.
If your lesson is mind blowing your clients brain will try to summarise your message as fast as possible and ignore details.
You must craft your lessons to gain and keep attention before scheduling regular breaks.