The emergence share is how money reaches what no channel would fund yet. Each of the four channels has a decider, and each decider tends to fund the familiar: buyers pay for what they already value, investors for what they expect to sell, and the people served by commission funds for what they recognize. Something new often has no audience, no market, and no constituency.
So a fixed part of the commission funds, about a tenth to start, is set aside. Proposals that clear a low bar (a workable plan, no serious harm, an accountable person) enter a lottery, and each person also directs a small yearly slice to any untested project they believe in. Grants start small and are renewed by signs of life, such as people joining and others building on the work, never by success yet. Failure costs no one their standing, people established in a line of work do not decide on its challengers, and work that takes root moves on to the ordinary channels. See protecting emergence.