You are extremely close to having it all figured out. My then friend Hugo Krop[1] realized that something didn't add up but also missed the required background which is where I was brought in. I figured out how the demo was rigged and told him, that was the end of that. Interestingly: Pieper did go for it, and Pieper wasn't exactly dumb himself. I never really got that bit, he must have realized it was a scam. The demo was held in a building on the Sarphatikade in Amsterdam.
[1] Of 'TextLite' fame, deceased, very colorful, and later on a scammer in his own right.
Yeah that demo was somewhat legendary back then. But how you figured he did the demo? Because although I met Sloot, he never demo'd it to me and I never saw a live demo (not on video either; why are there no videos; Pieper took the machine somewhere once); his friend said he did demo it to him and he also told him, over time, how it worked, more or less. I remember him saying all the time that Sloot (and now this guy) talked about infinite compression like it was the most trivial thing in the world so I don't suppose they actually thought that was any secret.
What I find very strange about the Pieper part (who I also met through a company (client) he advised with that investor vehicle he had of which I don't think any companies made it) is not that he fell for it; unlike what others say, he didn't appear very clever to me, at least not in anything tech, maybe business, although... He seemed like a blaaskaak when I met him; arrogant as hell and not much substance, but maybe that was his spiel for the ceo of the company he invested in. Anyway; what I find strange is not he fell for it but that his Philips tech colleagues, who saw the 'invention' multiple times, didn't have the same feel as you and Krop? And then warned him and said 'you must be insane to believe this boss' , or something. Not like Dutch people would hold back even if he was the boss.
Jan left a wife and four kids behind and I think Jan was effectively not the engine behind the scam, so I'm not going to put any of the rest of the story online. But if you want we can take this offline, email in profile.
As for Pieper: there is a reason why his investment vehicle (I take it you are referring to Twinning but there were others as well) did not do well.
Gah you really made me go on memory lane there, I've been thinking all day about all those people and what happened to them. Quite a few of them have died, some did really well, some went to jail, some have evaporated into thin air. It's a kaleidoscope.
I've been trying to place the exact date of the demo and I suspect it was one of the first he ever did to 'outsiders'.
[1] Of 'TextLite' fame, deceased, very colorful, and later on a scammer in his own right.