Customers of corporate banks deal with this all the time, I think you reported a few weeks ago that all of Wells Fargos services went down for a day. Banks have huge backup centers and disaster recovery processes, and they still lost a day... imagine all the businesses that weren't able to make or spend money that day. The impact is devastating.

Or, as you said, imagine and the people affected if Facebook or Twitter goes down for a day, businesses are affected, maybe even lives are affected.

As natural disasters become far more common, we're going to see a lot more services disrupted, and yet blockchain will just keep chugging along.