Doing it in blocks seems wrong. Instead, you should have 10 people board the plane in order of their seating, back-to-front, but have those 10 spaced evenly ov

Doing it in blocks seems wrong. Instead, you should have 10 people board the plane in order of their seating, back-to-front, but have those 10 spaced evenly over the plane, so they have at least one row between them. They're all spaced out so they don't interfere with each other. Then again I avoid airports these days because of the TSA.