Good day to you, my esteemed acquaintance, if..you exist,

I trust this letter— or rather, this peculiar electric contraption of a letter— finds you in good health and rational spirits. Dr. Watson insists this ‘cellular telephone’ is a device for communication, though I find its lack of visible wires most suspicious. I have tapped its glass repeatedly, and yet, instead of ink, it emits light! Quite distressing. It appears one must press the illuminated symbols to send words through the ether. Curious… and slightly unnerving. Nevertheless, I extend my salutations across this unfathomable distance of invisible currents. Should my message arrive intact, do kindly confirm with a— what is it called?— an ‘emoji.’

Yours, in ceaseless pursuit of logic, Sherlock Holmes Baker Street, 1893 (and, it seems, the future)