  Understanding the quantum nature of spacetime and gravity remains one of the
most ambitious goals of theoretical physics. It promises to provide key new
insights into fundamental particle theory, astrophysics, cosmology and the
foundations of physics. Despite this common goal, the community of quantum
gravity researchers is sometimes seen as divided into sub-communities working
on different, mutually exclusive approaches. In practice however, recent years
have shown the emergence of common techniques, results and physical ideas
arising from different sub-communities, suggesting exciting new prospects for
collaboration and interaction between traditionally distinct approaches. In
this White Paper we discuss some of the common themes which have seen a growing
interest from various directions, and argue that focusing on them will help the
quantum gravity community as a whole towards shared objectives.

High Energy Physics - Theory;General Relativity and Quantum Cosmology