another look at Aslan sex ratios

[Grav_Moped]

almost anything in the Terrestrial biome. Who's to say that when we finally achieve interstellar travel and make our first landing on Muan Gwi, we won't discover a planetary biome that uses reflected isomers of ... essentially everything.

Possible. We'd terraform it with Earth-compatible cis biology as quickly as possible (while shipping specimens of the native trans life back as weight-loss products).

 

[aramis]

almost anything in the Terrestrial biome. Who's to say that when we finally achieve interstellar travel and make our first landing on Muan Gwi, we won't discover a planetary biome that uses reflected isomers of ... essentially everything.

One of the big complaints of physicists is that the mirrors of various particles are nowhere near as common.
Likewise, many chemicals, the chirality of isomers isn't evenly distributed. And in the cases where they are, it can be a problem, because it's hard to separate the isomers by chirality. And sometimes, one chirality works and the other doesn't. Especially in medications.

The universe has preferences, and "mirror everything" is already excluded by the ones we've discovered.