Why is the Apple Calendar so broken?watch it now

UPDATE: I’m hearing reports of calendar apps crashing quite severely. Please only experiment on non-vital apps as you could hypothetically lose data stored in them! But apparently if the app crashes and restarts don’t fix it: a forced restart will.

Proceed with caution, at your own risk, and report any findings!

Buy a physical book from Waterstones! https://bit.ly/humblepi_waterstones

ebook on Amazon: https://www.amazon.com/s?k=humble+pi
Audiobook on Audible: https://www.audible.co.uk/pd/H....umble-Pi-Audiobook/0

Huge thanks to Nick Day and Ken Taylor who emailed me about this bug. If you find anything out, or know someone who might know, email me: matt@standupmaths.com

If you want to read the part of my book about this, here it is. (Don't tell anyone I let you have it for free.)
https://www.dropbox.com/s/cclo....c2ql091l1v5/HumblePi

This is the video of me talking about the Boeing 787 Dreamliner and the Los Angeles Air Traffic Control Route Center problems.
https://www.youtube.com/watch?v=HYgqvapH7ak

2^52 microseconds before 1 January 2001
https://www.wolframalpha.com/i....nput/?i=2%5E52+micro
(yes, yes, it is technically off by a microsecond)

CFAbsoluteTime
Type used to represent a specific point in time relative to the absolute reference date of 1 Jan 2001 00:00:00 GMT
https://developer.apple.com/do....cumentation/corefoun

Double-precision floating-point format on wikipedia.
https://en.wikipedia.org/wiki/....Double-precision_flo

CORRECTIONS
- Nothing yet. Let me know if you spot anything!

Thanks to my Patreon supports who do support these videos and make them possible. Here is a random subset:

Toby O'Neil
Nate Brown
Jordan Scales
Matthew Holland
Philippe von Bergen
Glenn Watson
Kevin Mannon
David Lake
Lucas Werkmeister
Jan Strohbeck

Support my channel and I can make more videos:
https://www.patreon.com/standupmaths

Filming and editing by Matt Parker
Music by Howard Carter
Design by Simon Wright

MATT PARKER: Stand-up Mathematician
Website: http://standupmaths.com/
US book: https://www.penguinrandomhouse.....com/books/610964/hu
UK book: https://mathsgear.co.uk/produc....ts/5b9fa76f230ffa140
Nerdy maths toys: http://mathsgear.co.uk/