> Ex post facto, the amount of "dark" matter calculated this way directly corresponds to the amount you would need to also explain galaxy rotation curves and gr

> Ex post facto, the amount of "dark" matter calculated this way directly corresponds to the amount you would need to also explain galaxy rotation curves and gravitational lensing observations in today's universe. Could you comment on this please? Or suggest some further reading? I was under the impression that the amount of dark matter in each galaxy is adjusted to match the rotation curve.