thunder isn't useful for buying 1 cup of coffee
its useful for buying 100 speate cups of coffees instantly.
Open Channel for standard bitcoin fee
send 100 payments for each cup of coffee
Close Channel for standard bitcoin fee
cool huh?
I don't get why people are worked up about this, or why this Lightning is taking such a long time to develop.
Here's a way to solve the coffee problem that's both simpler, more secure, and more elegant than Thunder Cats:
1. Walk into Starbucks.
2. Buy a gift card for 100 cups of coffee, with BTC or USD.
3. Use gift card each time you need to buy stuff from Starbucks. Functionally identical to Lightning/thunder,
4. Profit!
i agree for coffee like TX, thats the way to go.
but for things like coinbase accounts sending 1000's of payments to bitpay... lighting and or thunder is a big deal.