Indeed, there is no better measure of personal taste than the food one eats. Literally and figuratively. What our presidents eat is a function family heritage, personal preference, physical condition and social obligation. In sum: a president's favorite meal is NOT always what's served in the White House.
The points apply equally to research talks, lectures, and non-technical presentations. 1  The average attention span of an adult is 20 minutes.  Implication: you should ensure that the first 20 minutes of your talk include any material that you want your audience to remember.
Some psychologists claim the typical studentâs attention span is about 10 to 15 minutes long, yet most university classes last 50 to 90 minutes. Studentsâ attention levels vary widely based on factors like motivation, emotion, enjoyment, and time of day.