[useragent86]

> (I wish someone one day would recognize that tasks don't form trees, but directed graphs; Org Mode, being an outliner, doesn't handle this, but I'm surprised no other tool seems to handle it either.)

Does org-edna help any? Although it doesn't help with viewing them as graphs, it may help with making TODOs act like graphs.

[TeMPOraL]

Haven't used it yet, but skimming the documentation, it does seem to look like half of the picture. The other half would be a way to get a critical path analysis out of it, and somehow visualize everything together in a way that makes it easy to notice where you have slack or underutilization.

[chrisweekly]

Yes! See Roam (https://roamresearch.com)