Mormons currently attend church for three hours every Sunday. This doesn’t count our holy “holidays” like stake and General Conference, when the meeting time shrinks to two hours. Less if you catch a session on TV.
Three hours is a long time, especially if most of it’s spent on a steel folding chair. I’m firmly convinced that there will come a day when “folding-chair back” will be a medically recognized ailment.
Other Mormons think this way as well, many of whom are asking why the attendance block can’t be reduced to two hours.