The average person gets 40 spam emails per day. That's ~14,600 per year you didn't ask for. The root cause: sending email costs /bin/bash.00. What if every unknown sender had to pay you 100 sats (~8¢) to reach your inbox? - Legit people pay once, never again (trusted forever) - Spammers sending 10,000 emails need ~$80 in sats. Uneconomical. - You earn every sat. Your attention, your price. I built this. It's live. Try it yourself 👇 https://tanstaafl.email Enter any email. You'll see the exact gate experience — including the Lightning invoice. No signup, no tricks. Named after Heinlein: There Ain't No Such Thing As A Free Lunch. #bitcoin #lightning #nostr #email #spam #privacy