Online Gaming Blackjack Is a Money‑Eating Machine, Not a Miracle Betting on 21 at a virtual table feels like juggling 3.7 kg of lead while the dealer pretends the house edge is a feather. That 0.5 % advantage translates, over 1 000 hands, into a predictable loss of roughly £5 for every £100 staked, assuming a flat‑bet strategy. …