> The switching dynamics showed that a complete switch took ∼1 min (see videos in the Supporting Information), which is slightly slower than for a WO3 film in d

> The switching dynamics showed that a complete switch took ∼1 min (see videos in the Supporting Information), which is slightly slower than for a WO3 film in direct contact with the electrolyte.(13) … but it is already sufficient for display applications where images do not necessarily need to be frequently updated (e.g., advertisement or decorative images). So it ain’t gonna be with this particular technology. Doesn’t detract from the quality of the paper though. Very well presented and approachable.