Thread by @just_rosandin

Most people think privacy on blockchains is impossible but what if smart contracts could compute on encrypted data without ever seeing it?

Here’s how encrypted computation is becoming real 🧵

Zama wrapped this into the fhEVM. Developers keep Solidity, but gain encrypted types like euint. Coprocessors do the heavy cryptography offchain, then return verified results. To builders it feels like Ethereum, but every variable and balance is encrypted by default.

At the heart is Fully Homomorphic Encryption (FHE). It lets contracts add, multiply, and evaluate logic directly on ciphertexts. Inputs stay private, yet outputs are provably correct. For the first time, privacy and verifiability exist together onchain no tradeoff needed.

Performance isn’t a dream. Zama hit a milestone once thought impossible: bootstrapping in under 1 millisecond on GPUs. Bootstrapping is the costliest FHE operation. Reaching that speed means confidentiality can now scale to thousands of encrypted transactions per second

This unlocks primitives public chains could never handle safely ;
★ Confidential DeFi with hidden balances but auditable flows
★ Sealed bid auctions immune to MEV
★ Private stablecoins for payroll & remittance
★ Governance with secret votes provably counted onchain

Adoption is already happening.
OpenZeppelin co authored a confidential token standard with Zama.
Conduit integrated the fhEVM gateway into rollups ,builders like Coffhee , deBerry are testing encrypted DEXs and auctions. The ecosystem is forming before mainnet even launch

The message is simple: transparency made blockchains exciting, but confidentiality will make them usable.
Zama’s fhEVM is live on testnet now.
If you’re building, this is the moment to try encrypted smart contracts. Privacy by default isn’t the future it’s shipping today.