Depends what you mean by "startup" and indeed "success". As mentioned elsewhere on this thread, small business survival rates are surprisingly high these days

Depends what you mean by "startup" and indeed "success". As mentioned elsewhere on this thread, small business survival rates are surprisingly high these days - around 60% depending on whose figures you believe. (I think that's too high, and suspect it doesn't include digital businesses to the extent it should. But 40% wouldn't surprise me, across all sectors and industries.) Wannabe-unicorn success rates at getting to unicorn status are, OTOH, very low indeed. But the rewards are arguably commensurate with that.