Schutz 1986 method: GW amplitude gives luminosity distance directly (no calibrator); GW170817 EM-counterpart gave H0 = 70 +/- 12 km/s/Mpc; future BBH+EM events expected to resolve Hubble-tension at ~1% level by 2030.
Schutz 1986 method: GW amplitude gives luminosity distance directly (no calibrator); GW170817 EM-counterpart gave H0 = 70 +/- 12 km/s/Mpc; future BBH+EM events expected to resolve Hubble-tension at ~1% level by 2030.