Thanks Bradley! I’m not intimately familiar with Slack’s history, but as I understand it, the company was originally building a game and then realized the tool they were building to communicate was actually more interesting. I’d say that falls into this framework—the point isn’t that businesses can’t pivot, but rather, that getting funding assuming you’ll make a dramatic pivot late in the game is hard to do.
Slack’s a tough comp in that the founder is a previously successful founder of an iconic web brand. If you’ve been hugely successful previously, you’ll find it easier to get funding, even with an idea that shifts quite a bit.
To you last point, our general philosophy is that you should aim high, but not close off your options unnecessarily along the way. Take less, make more.