Why, Johnny Ringo.

"because nothing can be more powerful than a teenage girl"

The Eridian science teams try soooo hard to be soooo normal about Grace. "He helped save our entire planet, we cant experiment on him!" "Hes a whole ass intelligent being, the biodome isnt like a zoo enclosure at all we swear." "Rocky might actually kill us if we try and add enrichment things to the biodome just to see what happens. It'll seem like an insult to Grace's intelligence."

As soon as they panned to the fiber arts classes I sat straight up because that is the PERFECT mechanism for girls and women to pass coded messages in Gilead. No one is going to pay any attention to the Wives knitting or embroidering or making lace - it's basically the only "work" they are allowed to engage in. It's seen as frivolous and purely ornamental. Even in our world, men dismiss the value of fiber arts and belittle the women who engage in them. And yet throughout history fiber arts/textiles have been used to communicate coded information. In the 1800s, quilts were used to communicate coded information about how to navigate the Underground Railroad. In WWII, knitting was used to send coded messages concerning troop or railroad movements.