Mercury square Uranus (orb 1.9°) creates concrete friction between the two planets. The orb is very tight; this describes a stable character pattern more than a passing reaction.
Here, Mercury in Taurus in House 11 brings intellect, language, thought, and technique into House 11 (networks, audience, groups, ideas, ideologies, political beliefs, and collective projects), with Taurus style (nature, good food, physical sensuality, roots, resources, and perseverance); Uranus in Aquarius in House 8 brings disruption, independence, and change into House 8 (sexuality, shared power, crisis, and invisible bonds), with Aquarius style (independence, networks, distance, and collective change).
Concrete friction: this aspect creates tension between thought, nervousness, rupture, and contradiction: the mind can cut too fast, provoke, or refuse the frame. House 11 (networks, audience, groups, ideas, ideologies, political beliefs, and collective projects) is in friction with House 8 (sexuality, shared power, crisis, and invisible bonds); this can create blockage, inhibition, overreaction, or repeated conflict between the two fields.