If you missed physical objects, they did not do ftir with fiducal markers, I guess? There were some nice demos back when that was novel, like over a decade ago.

Some of the tables I saw at trade shows (e.g. E-World in Essen) this year also had them. On one you could place 3d printed power plants and various energy storage systems onto a map. To adjust their output, you could turn them like a knob. The company sold a management system for small grid operators, which then reacted to those demo inputs.

> The product is a concept that I want to work more than it, historically, has.

Sad but true. But then they don't exactly fit into the usual living room. However, as specialized board game tables are getting more popular every year, we might yet see a market for smart variants emerging long term. Not a huge chance IMHO, but larger than zero.