Good question. In practice the fills don’t feed each other, the contracts do. A caller is checked against the callee’s declared post, which is fixed in the skeleton before any agent starts, so it doesn’t matter what the callee’s fill turns out to be or when it lands. If the callee’s fill is rejected, the caller’s proof still stands. There is an ordering: the compiler builds a dependency graph from calls to hole-bodied functions (SCCs broken deterministically and flagged), and the orchestrator topo-sorts it into tiers. But that’s for scheduling and failure handling, not soundness. Where it can go wrong is when assumptions get invented mid-run. `refine` lets an agent split a hole into new contracted sub-holes, and a caller could be “verified” against a sub-contract nobody can satisfy. That’s why spawned contracts go through a feasibility check (∃ input satisfying pre with no result satisfying post → reject) before anything is allowed to assume them. That said, tiers run sequentially today, real intra-tier parallelism is on the roadmap.

Good question. In practice the fills don’t feed each other, the contracts do. A caller is checked against the callee’s declared post, which is fixed in the skeleton before any agent starts, so it doesn’t matter what the callee’s fill turns out to be or when it lands. If the callee’s fill is rejected, the caller’s proof still stands. There is an ordering: the compiler builds a dependency graph from calls to hole-bodied functions (SCCs broken deterministically and flagged), and the orchestrator topo-sorts it into tiers. But that’s for scheduling and failure handling, not soundness. Where it can go wrong is when assumptions get invented mid-run. `refine` lets an agent split a hole into new contracted sub-holes, and a caller could be “verified” against a sub-contract nobody can satisfy. That’s why spawned contracts go through a feasibility check (∃ input satisfying pre with no result satisfying post → reject) before anything is allowed to assume them. That said, tiers run sequentially today, real intra-tier parallelism is on the roadmap.

Evolutionary shape changes of the vertebrate semicircular canals (SCCs) are often ascribed to evolutionary transitions in locomotion, including the...

The World Health Organization warned Thursday that Africa faced a "complex" Ebola outbreak after the virus crossed from east Africa to Nigeria, marking the first case in the west of the continent."We ...