I love it when people argue points that were never made. I didn't say it was impossible. I don't see any of the three companies making a decent product anymore. They all seem to be in over their head. They could all go bankrupt trying to get something that works, and can be mass produced easily.
ASIC done before. SHA done before. Sure, it's difficult and time consuming to produce the product in question, but anyone thinking it's impossible has no idea what the fuck they're talking about. If you think the idea of a bitcoin ASIC is a scam, you're goddamn delusional.