A pyramid scheme is a fraudulent business model where the organization does not actually sell any real product or service. Instead, it makes money by recruiting new members who pay an upfront fee to join — and that is essentially how the whole thing runs.
Here is how it works: new recruits pay a joining fee, and that money flows upward to the people who joined earlier. Each new member is then pressured to recruit more people, with promises of quick, high returns in a very short time. The earlier you join, the more you earn — at least in theory.
The problem? It is mathematically impossible to sustain. At some point, there simply are not enough new recruits to pay the existing members. When recruitment slows down, the whole structure collapses — and the people at the bottom lose everything. Pyramid schemes are illegal in most countries and should not be confused with legitimate multi-level marketing (MLM), which involves selling actual products.