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There are more possible iterations of a game of chess than there are atoms in the observable universe.

The number of possible ways of playing the first four moves per side in chess is 318,979,564,000.

This vast complexity makes chess an incredibly rich and challenging game, contributing to its enduring appeal and the endless possibilities it offers.

Psychedelic Cryptography

California-based nonprofit group called Qualia Research Institute has awarded cash prizes to artists who made videos encoded with hidden messages that can be most easily deciphered by a person who is tripping on psychedelic substances, such as LSD, ayahuasca, or psilocybin mushrooms.

Slovak traditional highland axe dance

EDIT: If you'd like to play a character like these guys in a video game, check out Hellish Quart.

El Ojo ‘The Eye’ Island Location: Buenos Aires, Argentina

First discovered by Argentinian filmmaker Sergio Neuspiller in 2003, El Ojo is an uninhabited circular rotating floating island located within a slightly larger circular lake in the Paraná Delta in the Buenos Aires Province, Argentina. This island is constantly rotating on its own axis due to the flow of the river beneath it. The island was named because of its resemblance to an eye when viewed from above: as the island rotates within its surrounding circular lake, the eye appears to move.

There is evidence to suggest that chimpanzees, like humans, can experience a phase similar to menopause. Menopause is a biological phenomenon in which females cease to be fertile and undergo hormonal and reproductive changes. In the case of chimpanzees, studies have observed that female chimpanzees also go through a reproductive senescence, a period of time when they cease to reproduce.

Research conducted on wild chimpanzee populations, particularly in East Africa, has shown that female chimpanzees experience a decline in fertility and reproductive success as they age. The age at which chimpanzee females experience reproductive senescence is estimated to be around the mid-30s to early 40s, which is similar to the age range at which human females typically go through menopause.

By the way, the reasons behind reproductive senescence in chimpanzees are not fully understood, but it's believed to be related to physiological changes and possibly ecological factors.

Besides humans and chimpanzees, there are a few other species of animals where females experience menopause or a similar reproductive phenomenon. Here are some examples:

Orcas (Killer Whales): Female killer whales are known to go through menopause. The reasons behind this are not entirely clear, but it is suggested that older females, post-reproductive, play a crucial role in supporting and guiding their offspring and the larger pod, contributing to the survival and reproductive success of their kin.

Short-finned Pilot Whales: Similar to killer whales, short-finned pilot whales also exhibit post-reproductive lifespans, where older females cease reproduction and contribute to the social structure and survival of the group.

Narwhals: Female narwhals have been observed to go through menopause as well. As with other species, post-reproductive females may contribute to the group's overall fitness by assisting with the care of younger members.

Beluga Whales: There is some evidence suggesting that beluga whales also experience a form of menopause. Older females may stop reproducing and play roles in supporting their social groups.