Exponential growth is the path of longsuffering, and one doesn't always make it. It sucks and looks and feels bad for all involved. This is why advice such as, "Ignore the naysayers." is clutch. And other advice once one starts to rocket shoot like "Stay in your lane." is the absolute worst advice of all time. (IYKYK - Rest in peace Scott Adams)

Another thought - Einstein had reviewed thousands of patents when he worked on the train - that's a hell of data set for an LM to start with.