Starknet (STRK) is a Layer 2 network that scales Ethereum using 'ZK-rollup' technology — an advanced form of cryptography (STARK proofs) that bundles thousands of transactions off-chain and posts a single mathematical proof to Ethereum verifying they're all valid. This makes transactions cheap and fast while inheriting Ethereum's security, and the proof system has bonus properties: it needs no 'trusted setup' and is considered resistant to future quantum computers. Starknet uses its own programming language ('Cairo'), which is powerful but unfamiliar to most developers. STRK is the token for fees, staking and governance. Its bet is that ZK-rollups are the endgame for scaling, and Starknet is a technical leader among them.
Where it stands today: Starknet has strong technology and is pushing frontier features — recent upgrades cut latency and block times sharply, it's decentralizing its sequencers, and it made a notable move by launching Bitcoin staking (letting BTC help secure Starknet, the first rollup to tie its security to Bitcoin), which grew quickly. It also shipped native privacy features and private Bitcoin transfers. But the token side is painful: STRK has been under heavy, persistent selling pressure, hitting deeply oversold levels, with token unlocks running into 2027 that keep adding supply. It's the classic 'fundamentally improving network, technically broken chart' split. So today it's a technically ambitious ZK leader whose real progress is overshadowed by relentless unlock-driven supply pressure.