Risk of GPS loss
The Chinese government confirmed today that it had conducted a successful test of a new anti-satellite weapon by shooting down one of their own satellites. It should serve as an alert to navigators that a functioning GPS system can't be assumed.
It made me move "learn celestial navigation" higher up my to do list.
Twenty years from now you will be more disappointed by the things y%^&*.....oh never mind. 90% of the people on sailing forums already use that as their signature! I'm not a conformist.