Yup, we might be down to 100ms now -- certainly still a long way from your initial 15ms guess. Since I moved on from that last gig, I note that Telstra complet

Yup, we might be down to 100ms now -- certainly still a long way from your initial 15ms guess. Since I moved on from that last gig, I note that Telstra completed their Sydney-Perth re-cabling project, and the Vocus Perth-Singapore undersea link came online (2018-04). (I believe east coast traffic routes through Perth to get to Singapore, which was/is/will continue to be part of the problem.) "lightspeed math" means LEO may well offer performance improvements over terrestrial cabling in many non-obvious scenarios.