Not only is it an optimistic communications process, but the charging of your credit card isn’t even atomic. I once showed up to a hotel hours after my card ha

Not only is it an optimistic communications process, but the charging of your credit card isn’t even atomic. I once showed up to a hotel hours after my card had been charged successfully. The backend credit card of the reservation company declined the charge, so the hotel room had been booked, but the hotel hadn’t been paid. The hotel manager sat on hold for 10 minutes, and the website fixed it.