practical sub-50 ms inference reach (50 ms RTT ⇒ ~5,000 km propagation-only; switching/queuing/compute overhead and the ~1.3–1.5× fiber route factor cut it to practical reach)

Name: practical sub-50 ms inference reach (50 ms RTT ⇒ ~5,000 km propagation-only; switching/queuing/compute overhead and the ~1.3–1.5× fiber route factor cut it to practical reach)
License: https://aidatacenterguide.com/terms#intellectual-property

~1,000–1,500 kmobserved

Value kind	observed — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range.
As of	2025
Source	derived (guide analysis; fiber/latency, route factor → 3.6)
Derivation	Fiber budget: ~5 µs/km propagation × route inflation plus serving overhead gives ~1,000–1,500 km inside a 50 ms RTT envelope.
Review	checking…review by 2026-08-13 · standard cadence
Recorded changes	last 2026-07-10 · 2 revisions tracked
Claim id	practical-sub-50-ms-inference-reach-50-ms-rtt-5

Where the guide uses it

Not quoted in a chapter yet; it is kept in the curated register.

← Full numbers register — every date-stamped figure in the guide, with revision history.