Everyone has heard about love at first sight. But what about hate at first sight? The latter describes John Bogle’s long-lasting hate affair with exchange-traded funds also known as “ETFs.” Mr. Bogle is a well-known figure. He’s the founder and retired CEO of the Vanguard Group which manages around $2 trillion in assets. He’s also the man who launched the first retail index mutual fund in the US back in 1975. But he can’t – or doesn’t want to – understand ETFs. I know this firsthand because I’ve had the privilege of interviewing Bogle several times on my weekly ...