I remember reading an article about this years ago - a non-transferable FPGA configuration which had some logic that should be unreachable but didn't work without it. Very faschinating but I've not been able to find it since.
I still have a similar 'battery bomb' sitting in my closet because I had the same plans some years ago. Perhaps I should dispose of it before it goes up in smoke
I agree, but so does the article; I quote:
"Still, few things last forever, and the market for written tech journalism is not what it once was – nor will it ever be again."