Imagine one is an architect. One has designed a fantastically tall building with all the trimmings. Construction begins one sunny day and years down the line you're looking forward to dedication ceremonies and whatnot.
Many moons later you decide to check out your building to see if it lives up to your vision. Now you're no engineer but it seems like they're still building so you check your designs. Can't see this in here you think but you let it pass and indeed more time passes.
You've moved on to other things, perhaps even vocations, but you'll never forget what you no doubt regard as your crowning achievement and think, 'I wonder how that's doing', deciding to go for a visit. What you see is like before except they've added more floors under the part you couldn't find in your designs. Now troubled you visit the construction office and ask them what they think they're doing to your building. 'That stuff even up to code?', 'who's in charge of this mess?', you ask. Please stop you beg,
Don't worry they tell you. It's too big to fail.