I disagree. If you're trying to do, say, implement five revolutionary things no one's ever done all at once, so you can tell people you're going to go from zero to sci-fi in a couple years, there's an extremely high likelihood you're being overambitious. That's something that's obvious from the start.
The vast majority of people, including engineers and business leaders, are not Edisons or Telsas. Sometimes people get lucky or they have unusually well-resourced and competent teams to tackle an unusual amount of stuff at once. That's why I qualified my statement with "there's an extremely high likelihood..." Given Neuralink is facing "a federal probe and employee backlash" over shoddy practices, I highly doubt they have the unusually well-resourced and competent teams to not be overambitious.