Absolutely no longer than ~50 seconds
I was remembering my good old project manager’s day. For your weekly project status reporting meeting, often the customer(even stakeholders) will come late and ask “I’ll not have time to go through details…Can you run through the summary slide?”
A bomb! I don’t know how/what to say to him now. Here I had prepared for 2 days with careful details on every slide with diagrams/ information, whereas I’m now asked for something else.