Will we see 1243 today now that news is over?.... I think so yes
What is it that one needs understand in order to not throw away money?It all depends on what you are asking about!
Let's say a newcomer..no experience what so ever..maybe something like this.
"What do I need to understand about the financial markets so that I do not throw away my money when I start to learn about trading/investing?"
Will we see 1243 today now that news is over?.... I think so yes

Waterfall?
Short is good as long as we are below 55 but below 51 is even better
What is it that one needs understand in order to not throw away money?
What is it that allows a tiny percentage to profit while most people lose?