>He is neither affiliated with the person who lost the legos
I haven't watched part 2 yet, but he absolutely is affiliated with the person who lost the LEGOs. He's explicitly working with the son, who was the previous person that was running point on trying to get the sets back until it ruined his life.
Heat pump != Geothermal energy generation, or any energy generation at that
Home geothermal /could/ be a power source, sure, but I do not believe that’s what OP intended to say when mentioning heat pumps. I’d be pretty surprised if it was becoming common in Europe to have home geothermal
A heat pump (which are more common in Europe, but they’re gaining popularity in the US) is essentially a reversible air conditioner that can take advantage of the latent energy in the air to move heat very efficiently. They’re a great invention, but they have nothing to do with producing energy
I haven't watched part 2 yet, but he absolutely is affiliated with the person who lost the LEGOs. He's explicitly working with the son, who was the previous person that was running point on trying to get the sets back until it ruined his life.