This Perspective explores how the physical properties of these topological nanoscale systems, such as magnetic skyrmions and ferroelectric domain walls, can be leveraged for reservoir computing.

A new class of septuple-layer 2D materials has been identified, with the first two members already synthesized: MoSi₂N₄ and WSi₂N₄. The possible variation of compositions and crystal structures make the new family of 2D materials very versatile and extremely attractive for research and applications.

The understanding of fluid flows and their interaction with magnetic fields in planetary and stellar cores or accretion disks represents a challenge for geophysical and astrophysical research. This Review covers recent liquid-metal experiments on the underlying processes, such as convection, Alfvén waves, the magnetorotational instability and the dynamo effect.

Entropy is central to statistical physics, but it has multiple meanings. This Review clarifies the strengths of each use and the connections between them, seeking to bolster crosstalk between researchers and to emphasize the power of inference for non-equilibrium physics.