The Leverage Test: solopreneur business ideas that keep paying after you stop (2026, EU)
Most "solopreneur business ideas" lists are jobs in disguise — freelancing, coaching, VA work that stops paying the moment you stop. The Leverage Test is the opposite: a filter and a taxonomy for one-person business ideas with real leverage, organised by the four ways a solo actually scales — products, media, marketing and capital. EU-first, service-free.