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Lucy Dacus sits at a picnic table in Elysian Park blinking against the sun on a windy afternoon in early March.

When he was first injured he could only communicate by blinking and clicking, and his injury is the worst level of tetraplegia – paralysed from the neck down and on a ventilator.

Round eyes blinking on the screen, it began rearranging the pieces to start a new game as it continued in Mandarin: "I've seen your ability, I will do better next time."

She could communicate a bit, blinking once for yes and twice for no.

The tall, shiny buildings which rise out of the cornfields on the Myanmar side of the Moei river are a sight so jarring you find yourself blinking to be sure you haven't imagined it.