Third-generation gravitational wave detectors are going to see all stellar-mass black-hole mergers in the Universe. Wooooooooo. But hang on, is this enough? Observing the sources is great, but then we need to measure them. Here we try to focus on the latter and quantify how well we will be able to measure the distance of black holes. Read the paper now, but the short answer is that 3G detectors are going to be awesome but not that awesome…

Michele Mancarella, Francesco Iacovelli, Davide Gerosa.
Physical Review D Letters 107 (2023) L101302.
arXiv:2303.16323 [gr-qc].