This is an interesting find:

This tool dials a phone number and a computer voice reads off the text. The receiving phone number shows up as the CallerID field. You can set the time to any point in the future, or you can leave the time to now and it will call immediately.

# Use this for: Giving yourself a reminder
# Pulling a prank on your friends
# Giving yourself an excuse to leave a date/family event, etc.

I’m guessing the prank opportunities for this are off the charts, but I could also see a lot of utility for self motivation. A lot of self help books talk about writing your future self notes, and this might just be the 21st century version of that helpful hint.