This story is set in a near future Silicon Valley where a tech billionaire gets his friend to test a prototype of a bracelet that is able to detect the current mood of the wearer. It glows different colors depending on whether the person is intrigued, skeptical, afraid, excited and so on.
At least that is where it begins, because the story quickly takes some wild turns where we end up in a parallel world with an highly advanced Roman empire. Apparently, the tech billionaire has stolen some of his tech through a portal to this world.
There are quite a few interesting concepts introduced here and a couple of noteworthy jabs at the tech billionaires of the present, but it is simply too many things crammed into too few pages. The story starts in a normal pace, then quickly goes into overdrive and then it is all over with a couple of timelapse paragraphs. These kind of ideas could really have benefited from at least a novella to come properly together.
Read in Asimov’s January/February 2023