I think this graph doesn't have to move left to right, it can also move right to left. On several occasions quantum computing started to move up the "tech trigger" slope, but without any functional applications for the current technology the point slid back down to the left again.
I think the graph needs at least one more demarcated region. After "tech trigger" there needs to be "real world applications". Without real world applications you can never progress past the tech trigger phase.
In chemistry this is the equivalent of Energy of Activation. If a reaction can't get over the big first step, then it can't proceed on to any secondary steps
Lots of natural phenomena only happen a single time per object, and lots of phenomena that do happen multiple times per object can go eons between those events, and lots of objects in space are moving incredibly quickly so they aren't in the same place as before, and many objects rotate so they aren't facing the same direction as they were before