>

Well, I don’t think there is any question about it. It can only be attributable to human error. This sort of thing has cropped up before, and it has always been due to human error.
Suddenly everything is a 'glitch'.  Like an 'oopsie' except nobody did it.  Even though the headline says somebody did it. >

Because our entire financial system is a giant ponzi scheme. And most Americans are completely ignorant to it so they can say whatever they want and Americans will go about their day and never care. >

... Explain how it is a Ponzi scheme. >

Sure. Fractional reserve banking is how all our banks work. Say you put $1 into a bank, FRB allows that bank to "invest" $10 into whatever they want since they have a 10% cash reserve requirement. So what do you think is happening every time the bank 10X your money? You pay for it through inflation. Who do you think benefits from that? The people who own the banks and get kickbacks from the banks for instituting and perpetuating such an asinine system. So you, the low person on the pyramid gets shafted with inflation while the banks get to keep multiplying their money as more people pile in. And what happens if their "investments" fail? Well nothing... Cause the government bails them out because they're right, if our banks fail society as we know it will fail, and guess who pays for that... You, through taxes and the ponzi scheme keeps going syphoning money from the bottom up to the top.
You can read more about about, or not, I don't really care cause it's not going to change. >

So what kind of system would you replace it with? And who would you go to to get financing for a new business? >

Regulate the banks, dummy. >

Regulate them to reduce what, loaning out money? Paying interest? The system described above only mentions those two bank functions. What would you be regulating them to make them do, essentially? >

Pay out more interest to their more common customers instead of to multinational investment firms? 
Don't nickel and dime your customers into the negative?
Don't get govt bail outs and subsidies for every bad business decision? Maybe make them pay for their mistakes?
Re-codify anti-trust laws?
Outlaw predatory practices?
Actually enforce ANY of the laws we currently have in place with punishments that actually mean something?
Anything, dude. Anything at all. >

Not a conspiracy theorist, just a realist, all air traffic being grounded and then all wall street trading being halted for a “glitch”, hell no. If you found out Russia hacked air traffic control, would you fly? If you found out Russia hacked Wall Street trading networks, would you feel your money was safe? Hell no. >

The ghost of Tom Clancy: JoT tHaT dOwN! >

Nothing to see here, just our economy's most influential market appears to have people in charge who aren't using disconnected testing systems to test code that controls it before it's pushed into use, and there's obviously no redundant security built in to prevent a single person from crashing the market either on accident or on purpose. >

Ah it's good that you know how to handle the NYSE system better than the engineers that run it while you complain about it on Reddit. >

I built parts of it (caused my own intraday halt bug once). The place is run like a finance company rather than a technical one — they do tons of QA and they move glacially slow on tech adoption so lots of systems are way behind the curve compared to your modern tech company. Processes, technologies, methodologies are largely mandated from the top down by executives. You’re prohibited from trading and you don’t make the same amount of money you’d get at brokerages or hedge funds so they’re not really attracting quant level HFT engineers either. They do DR testing on weekends when the exchange is closed, they likely just forgot some operational process to revert for opening. The technical operations team was my biggest complaint - engineers aren’t allow to deploy their own software, there’s a special team that does it but they were practically incapable of doing anything on their own. I’d spend hours of my weekend watching a screen share of a guy trying to upgrade my package versions on our server for a deployment. He had a run book we had to write and me on the phone and he’d still fuck it up. I wanted him to cat a file or view the process list and I’d have to verbally spell out the keystrokes.