In the Web3 world, "scalability" is often simplified to a competition of TPS, but what truly determines the future limits of blockchain is never the numbers, but the underlying system engineering capabilities.
The real challenges, but ones that no one is willing to tackle, include:
Deterministic execution that can be reliably reproduced across networks and hardware — without it, large-scale on-chain computation cannot be credibly scaled.
A finality protocol that is low-latency and available around the clock — networks supporting payments and AI collaboration cannot tolerate instability.
Secure and lossless multi-core parallel execution — for blockchain to catch up with modern computing, it cannot remain forever stuck at the single-thread bottleneck.
Native interoperability without custodial bridges or wrapped assets — true multi-chain interoperability should resemble process collaboration in operating systems, rather than asset wrapping games.
These are not "sexy" topics, but they represent a watershed moment for whether Web3 can enter mainstream applications in the next decade.
Parity chooses to face these fundamental challenges —
Because Polkadot and future application ecosystems need an execution layer that can support global scale, rather than a performance illusion on paper.
True innovation does not rely on exaggerated data, but on engineering willing to tackle hard problems.
