While individual donors and foundations may play some role or another, nearly all risky outliers with new ideas are funded by taxes, not random individuals. The

While individual donors and foundations may play some role or another, nearly all risky outliers with new ideas are funded by taxes, not random individuals. The number of private research institutes is extremely limited (in particular in Europe, slightly less so in the US). Once ideas are less risky to pursue, industry is very happy to adapt and fund them, but the initial kickstart is nearly always paid for by public money.