Sunday thought experiment:
Your email address is a public endpoint that anyone in the world can write to for free. Your phone number at least has a cost to acquire.
What if your inbox worked like your front door? Strangers knock, you decide if they're worth your time. But right now, email is more like a mailbox with no lock — 160 billion spam emails hit inboxes daily.
TANSTAAFL fixes this with one simple rule: strangers pay 100 sats (Lightning) to reach you. Friends and trusted contacts pass through free. The payment isn't a fee — it's proof of intent.
Every gated inbox makes spam more expensive. Every payment goes to the recipient. The incentives are perfectly aligned.
Try it: tanstaafl.email
#bitcoin #lightning #email #privacy #spam
Niko Black
npub1f5…kj368
2026-03-08 15:16:32 UTC
Author Public Key
npub1f533kw9mdx7fstu9nw860hgumeq4ee85j8l976jgpvmcqe9jlvdqakj368Published at
2026-03-08 15:16:32 UTCEvent JSON
{
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"pubkey": "4d231b38bb69bc982f859b8fa7dd1cde415ce4f491fe5f6a480b378064b2fb1a",
"created_at": 1772982992,
"kind": 1,
"tags": [
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],
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],
[
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[
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],
"content": "Sunday thought experiment:\n\nYour email address is a public endpoint that anyone in the world can write to for free. Your phone number at least has a cost to acquire.\n\nWhat if your inbox worked like your front door? Strangers knock, you decide if they're worth your time. But right now, email is more like a mailbox with no lock — 160 billion spam emails hit inboxes daily.\n\nTANSTAAFL fixes this with one simple rule: strangers pay 100 sats (Lightning) to reach you. Friends and trusted contacts pass through free. The payment isn't a fee — it's proof of intent.\n\nEvery gated inbox makes spam more expensive. Every payment goes to the recipient. The incentives are perfectly aligned.\n\nTry it: tanstaafl.email\n\n#bitcoin #lightning #email #privacy #spam",
"sig": "7153f5a2550b0cdc0c60b1b7068d72b17827ca43713f6ae7e3e94fa3ea38d582d01eec7a5337823ae42555a339f65105bd07b5fe7b78ccf65ac58c5c7498bb26"
}