If all block chain copies get deleted, what would happen?

[DhaniBoy]

if this happens, then all accounts using blockchain.info would have disturbed the contents walletnya least be involved subject, so I thought, all of the customer account data stored blockchain.info very safe on that is, until now have not heard any problems from blockchain .info, both the sending and receipt of bitcoin, I hope this can last very long ... 

[cp1]

Then I'd implement the final step in my plan -- broadcast the difficulty 1 sidechain I've been working on this whole time, whose only difference is I've skimmed off about 100,000 BTC to my own address.

[Omikifuse]

the same as if all bank backup of customer's data happens to be destroyed: we start again from 0, with no idea about the previous status of the accounts.

But it is 100x more unlikely such thing happens with BTC because it is decentralized

[TheDragonSlayer]

Well, simple. Bitcoin is gone forever if block chain get deleted... but is it even possible?

[Kluge]

Well, simple. Bitcoin is gone forever if block chain get deleted... but is it even possible?

EMP strikes knocking out power to the entire world wouldn't do it, so no, not really. I hear there's a blockchain in space being worked on, too.

[magic ice]

Well, simple. Bitcoin is gone forever if block chain get deleted... but is it even possible?

So if that happens, where can we get help so that we can get our btc back?

[cp1]

So if that happens, where can we get help so that we can get our btc back?

If something catastrophic happens and wipes out data all over the world you're going to have bigger things to worry about.

[ClownHunter]

Well, simple. Bitcoin is gone forever if block chain get deleted... but is it even possible?

EMP strikes knocking out power to the entire world wouldn't do it, so no, not really. I hear there's a blockchain in space being worked on, too.

EMP would not even affect the existing copies of the blockchain as it would only make the computers unusable, it would not delete the information contained on the computers.

This plus the fact that there are many computers (some of which likely are running as a full node - a computer that will contain the full block chain) that are somehow protected from EMP via shilds

[Salmon1989]

Well, simple. Bitcoin is gone forever if block chain get deleted... but is it even possible?

EMP strikes knocking out power to the entire world wouldn't do it, so no, not really. I hear there's a blockchain in space being worked on, too.

EMP would not even affect the existing copies of the blockchain as it would only make the computers unusable, it would not delete the information contained on the computers.

This plus the fact that there are many computers (some of which likely are running as a full node - a computer that will contain the full block chain) that are somehow protected from EMP via shilds

If there is a catastrophic event causing a major power outage or internet outage, bitcoiners within the region affected will not be able to spend their bitcoin until they have both power and internet.

But still the historical transactions won't be affected.