According to @alice_und_bob, Polkadot core developer @bkchr published a write-up on achieving 500ms blocks and refers to the technique as block bundling rather than Basti Blocks, source: @alice_und_bob tweet on September 3, 2025. The tweet provides a link to the write-up and an image but does not state deployment timelines, testnet availability, or benchmark results, source: @alice_und_bob tweet on September 3, 2025. For DOT-focused traders, the absence of timeline and metrics means execution and liquidity impacts cannot be quantified yet and should be monitored via subsequent official updates, source: @alice_und_bob tweet on September 3, 2025.