Short story: Petra by Greg Bear, from Mirrorshades: The Cyberpunk Anthology, edited by Bruce Sterling. Recommended.
Poem: Mechanism by A. R. Ammons, listened to on the Poem of the Day podcast, from March 2018. Recommended.
Essay: How to Tame Your Wandering Mind by Amishi Jha, listened to on the TED Talks podcast, from March 2018. Recommended.