if the internet ceases to exist , life will no longer be worth living ...

in all seriousness though , it would take an apocalyptic event to knock out the global internet cause enough chaos that society breaks down ... possible scenarios that would likely do enough damage include massive solar flare , EMP/thermonuclear war , extinction level asteroid impact , alien invasion , viral pandemic event aka zombie apocalypse , and of course the most likely and my personal favorite - the end of the oil based global economy combined with all of antarctica and greenland falling into the oceans and submerging 80% of the human population areas within the next 50 years ... glad i like hiking and know how to swim ...

What about Sun entering in supernova? Everything would explode and cease to exists.
But talking serious, remember that a "zombie" always starts because a system failure. Only if everything fails zombies would overrun the whole world, what isn't the case. There are high control when talking about biological risks.

oh yeah that'd probably be enough to destabilize destroy modern society as well , and i am of course aware of that volcano possibility ... statistically speaking we are "overdue" for that one actually , as well as the asteroid impact ... but i did lazily leave it off the kind of joking half ass list ... also you could have a limited event in yellowstone that mostly impacts the u.s. northern hemisphere ... oh and of course a gamma ray burst from the nearby WR104 should probably make the list as well as that would without warning punch off earth's atmosphere and bath the surface in radiation ...

Yeah, so what. Similarly I can imagine with no banking system, everyone would be relying on gold to exchange for foods and weapons. A complete barter system based solely on essential items needed for survival. Even the fiats will prove to be useless in this scenario.

if internet ceases to exist and zombies arrive (for whatever reason) but nothing else changed, then that would sucks badly for the non-rich people.

if ALL modern technologies ceases to exist and zombies arrive, I would just think positive and see good side. no more being divided by money, less population, less over-spoiled brats, etc..  

in both case bitcoin will be gone, so yeah

don't forget,most important, your gonna need guns and lots of ammo

ideal to clinch the deal when bartering 

In that situation paper money would only be useful as toilet paper, or to boil water with if you had enough bundles to burn. Any electronic networked technology like bitcoin would be useless, although paper bitcoin wallets would come in handy as toilet paper too.

The loss of internet porn will be one of the biggest disasters that could happen.

If there was a zombie apocalypse I would not really care about bitcoin unless it became the currency of choice due to lack of government but that is unlikely because of the factors you mentioned earlier.

Exactly. How do people not see this? We had similar threads but about a World War, EMP, Solar Flare and whatnot. In most of these scenarios, everything that is worth a lot today, would be worthless.
Who would want to buy diamonds when an army is marching toward your house?

Wasn't there some project that was supposed to launch (or has launched) nodes into the Earth's Orbit?