[glenra]

> The blackjack games most casinos spread don't allow for a positive expectation, even when counting cards

It's true that terrible games have been proliferating lately (eg, 6:5 payoffs replacing 3:2), but can you really back up the claim that most casinos don't have a positive expectation (with counting) blackjack game? Do you just mean that to make it a positive expectation game you would need to use such a wide bet spread as to make the card-counting obvious? (Even then, I'm suspicious; Nevada is full of countable games. And are you ignoring strategy variation?)

It actually doesn't have to work at every casino; it would suffice if it worked at the casinos that had a good game - and a good glasses app could tell you which games were good. So yes, the glasses would have to be banned at the table.