Photo credits

• “Lhotse, Everest, Makalu and Chomolonzo from Phalut, Oct 2011” by Shilbhadra, CC BY-SA 3.0.

  Resized and shown under a dark overlay. Our adapted version is shared under the same license (CC BY-SA 3.0).

• “Huntington Beach Pier at sunset” by TeKappa, CC BY-SA 4.0.

  Resized and shown under a dark overlay. Our adapted version is shared under the same license (CC BY-SA 4.0).