One of my secrets is that I'm actually pretty bad at my building things. My process is good at keeping itself running, but it relies on me to keep track of what's actually in it. This means that if I e.g. install a manufacturing run and forget to mark it as in progress, I can easily end up with things -- minerals, components, ships -- in the process that shouldn't be there. And it's really hard to identify these without bringing manufacturing to a complete-ish halt and waiting for everything to finish.
It has been over a year since the last time I did this, and capital prices have been fairly stagnant lately, so a few weeks back I put a hold on new runs. I've just now gotten to a point where I'm pretty sure I've identified what extras I have in the process, which are as follows:
0.9 billion in excess minerals (not bad)
1.47 billion in excess components
2.38 billion in excess ships (2 nidhoggur)
4.75 billion total
tl;dr I can lose track of multiple capital ships and not even notice.
Anyway, with that over I guess it's time to get things moving again.