https://www.jefflindsay.com/Block.shtml
The Case Against Block Scheduling: An Educational Fad that Hurts Academic Performance.
the problemblock scheduling
https://ifttt.com/applets/NM5eK7fB-block-off-acuity-scheduling-times-for-new-ios-calendar-events
Use this Applet to automatically block off Acuity Scheduling times for new events added to a specified iOS Calendar. ... iOS Calendar, Acuity Scheduling
blockacuityschedulingtimesnew