Next-generation observations will revolutionize our understanding of binary
black holes and will detect new sources, such as intermediate-mass black holes.
Primary science goals include: Discover binary black holes throughout the
observable Universe; Reveal the fundamental properties of black holes; Uncover
the seeds of supermassive black holes.Comment: 14 pages, 3 figures, White Paper Submitted to Astro2020 (2020
Astronomy and Astrophysics Decadal Survey) by GWIC 3G Science Case Team
(GWIC: Gravitational Wave International Committee