Sending a message to a stranger costs nothing. That's exactly why spam, phishing, and cold outreach are so cheap to run at scale there's no cost to the sender, only to your attention.
Some messaging models are starting to flip that: if someone outside your contacts wants to reach you, they attach a payment to do it.
Ignore it, you keep the payment. Reply, the conversation continues normally.
No cost to spam = no reason not to spam. Add a cost, and the entire economics of unsolicited messaging collapse overnight.
Attention has value. It's about time something treated it that way.
Every message you send today assumes your encryption will still hold up in 10 years.
That assumption is being tested right now. Quantum computing research has moved from "distant theory" to active migration proposals for Bitcoin's own cryptography in 2026.
Privacy shouldn't have an expiration date but almost nothing you use today was built with that timeline in mind.
Most people think $BTC 's cryptography is untouchable.
In March 2026, Google and Caltech independently estimated that breaking Bitcoin's ECDSA encryption could take under 500,000 qubits down from the 13 million once assumed.
That's why BIP-360 and BIP-361 now exist: proposals to migrate Bitcoin toward quantum-resistant addresses.
The scary part isn't "when." It's "harvest now, decrypt later" data intercepted today can be decrypted retroactively once the tech catches up.
How many apps holding your private messages right now even have a migration plan?