>>12069912A scam requires a victim/potential victims, like customers pre-ordering a product that does not arrive, or investors being convinced into funding a company where the founders don't actually have a plan/ability to deliver a profitable product.
Neuralink has no customers yet, so it would be impossible to scam them. Looking at their funding, Musk has provided about 2/3rds of it; spending $100 million to trick others into investing $58 million would be a really stupid scam. So my take is that Neuralink is genuinely trying to do the research needed to create actual products; whether or not they succeed and on what timeline is of course unknown right now.