An 'Equilateral Triangle', has 3 corners, 3 equal sides with all the 3 internal angles congruent to each other and are at 60 degrees, each.

An investor's equilateral triangle has to be similar with the 3 corners being -

Patience

What to Avoid

What to Buy

Any of these 3 attributes change ( & in that order); its no more an equilateral triangle; and the portfolio's equilibrium is generally lost.