Yes, you are right. We have seen every possible threat being discussed on this forum... from Solar flares to Nuclear attacks, and none of these pose a real threat, because Bitcoin is too decentralized.

You would have to see some Global Apocalyptic event, for it to collapse 100% .... If that happens, people would not bother to worry about Bitcoin, they would worry about survival food shelter and

basic things like that. Let's just stop with all the Doomsday scenarios for Bitcoin... Hell, if the internet goes down, all other digital networks goes down too.    

i think every thing is around blockchain and if block chain collapse i think that will be such a big problem then. so can hope that blockchain will will in good position and will never collapse.

First of all this is not even coherent question. Op, clearly hadno idea what exacly he want to know and how formulate this question.
It is exactly like Shorena said, Op confused blockchain.info an online wallet provider with bitcoin network backbone - also called the blockchain.

Any online service provider can fall, we saw it happen in the past and will see it in the future, but bitcoin fail is very unlikely, almost impossible.
It is not even worth talking about it and spread rumors in the process.

I guess I would be confused, trying to figure out how a virtual construct managed to actually collapse. Seeing as this is data, and not bricks and mortar, there can be not 'collapse'. Copies of the ledger are stored all over the world on millions of devices; until every single one of those records is destroyed, the blockchain will continue to persist. This is the core of the technology, decentralization.

No one knows exactly , what is surely the future as bitcoin will always grow and will be a lot of people who know bitcoin but there will be opportunities
that the fame will reduce if the price reduction . I think the problem is always the same blockchain will always are the backbone of bitcoin afteral . without it there would be no bitcoin

I think it is impossible to blockchain could be a collapse or bankruptcy they do not incur huge costs for the maintenance of their sites. I'm sure they will not become insolvent or bankruptcy maybe I would think if blockchain be a scam? is it possible?