Generate a selfie with a smartphone of Albert Einstein in a cluttered study, holding a comb to his famously wild hair, sticking his tongue out. Chalkboard full of equations behind him, with a Snapchat dog-ears filter and a playful caption about ‘bad hair days’ and relativity

A vibrant 'FEEDBACK' sign constructed from pulsating data streams, where glowing blue typography floats against a deep cosmic void, its letters formed by interconnected nodes of user avatars exchanging chat bubbles, with occasional emoji sparks bursting from critical touchpoints, rendered in ultra-high definition with subtle motion blur to suggest digital vitality.