The most important thing to bitcoin is the internet. At the very worst, If the internet got shut out allover the globe.
1. The nodes wouldn't be able to run/communicate
2. Mining would be impossible
3. Transactions would not be possible
4. The value/demand would consequently drop to Zero as people wouldn't be interested in buying something that doesn't work
5. The End
Yes but in the near future we wont be reliant on the internet as we know it now!
Take SpaceX's Starlink project which from the opening text from the Starlink website states "
SpaceX is leveraging its experience in building rockets and spacecraft to deploy the world's most advanced broadband internet system."
https://www.starlink.comThe world in regards to Communication, FInance, Trade and Navigation etc. is too reliant on the Internet it simply is not going to end.
The only thing I can see ending Bitcoin is a Hack and lockdown or lockout [I dont know how that would happen or if it is possible, but in my imagination this seems quite dramatic!]