The startup pitch deck is a presentation that presents the product or service in a way that will make it interesting to investors. It usually includes some of the key features and benefits of the product, as well as how investors can benefit from investing in your company. A pyramid scheme is a type of investment fraud where an individual pays money into a company with promises of returns. The idea is that those who invest early on will receive greater profits than those who invest later on. The pyramid scheme will continue to grow and profit until all the money has been collected and then collapse, leaving investors out in the cold.