If it is true that...

Fast growth makes startups attractive investments

and

Rapid growth is what makes a company a startup

Then it must be true that...

Investors can't wait around if a startup is growing fast

If it is true that...

Investors are pinched between two kinds of fear: fear of investing in startups that fizzle, and fear of missing out on startups that take off

Then it must be true that...

Investors can't wait around if a startup is growing fast