Markowitz notes that this would generally be an unwise decision because the typical investor although wanting" returns to be high,, also wants returns to be as certain as possible This means that the investor, in seeking to both maximize expected return and minimize uncertainty, has two conflicting objectives that must be balanced against each other when making the purchasing decision at t=0 One interesting consequence of having these two conflicting objectives is that the investor should diversify by purchasing not just one security but several• Markowitz notes that this would generally be an unwise decision because the typical investor, although wanting “returns to be high”, also wants “returns to be as certain as possible.” This means that the investor, in seeking to both maximize expected return and minimize uncertainty, has two conflicting objectives that must be balanced against each other when making the purchasing decision at t=0. • One interesting consequence of having these two conflicting objectives is that the investor should diversify by purchasing not just one security but several