Meltdown’s a bit emotive. But personally I do reckon our current system of the world’s pretty well screwed. It can probably limp on for a long time though but with 2 crippling factors- 1, that the people on top are most interested in keeping themselves on top and 2, that they don’t actually have much of a clue how to do that.
My own forecast is that we carry in in the current rut, dedicating more and more energy into trying to preserve the status quo rather than trying to work out a better option. And that this will ultimately be futile, but that in the attempt we’ll fail to look forward and design a new approach. Eventually we’ll end up with an uncontrolled collapse rather than a managed shift.