The Engine and the Passenger: Mark Cuban, the 401(k), and the Uncomfortable Symbiosis Between Ordinary Savers and Extraordinary Fortunes

Preface: A Provocation on X On Saturday, June 13, 2026, billionaire entrepreneur Mark Cuban — co-founder of broadcast.com, longtime owner of the Dallas Mavericks, fixture of “Shark Tank,” and one of America’s most relentlessly online business figures — posted a…







