[franciscop]

From the poster sharer username here in HN it seems "the poor author" is also the one sharing it here, so it seems this blog post is at least partly directed to the general HN audience, not like the hypothetical situation you are placing here. So the whole "It's just not for the overall HN crowd" is probably not a valid point?

I found it a throwback to my university years, but I did study Industrial Engineering with thermodynamics, fluid mechanics and whatnot so I did find it interesting. I'm pretty sure it's usable by a bunch of people in HN as well in many fields where software intends to emulate the real world, like designing a smart appliance, games, VR, etc.

[wildmanx]

What's getting confusing with this discussion is that the title has changed. Now it's just "Poisson's Equation". But before it was "Most Powerful Tool not yet in your Toolbox" which was really off topic for a mainly sw dev crowd.

That the author himself submitted it (under that original title?) would then be his own "fault". But my general original point remains.