My oldest brother once said that as one ages, one’s world shrinks. I don’t agree with that – in fact, I often feel the opposite is true. But in one sense, I see this happening – as we age, people that meant something to us, either personally or in the public sphere, pass away. And our world seems smaller. This week, three such people passed: Daniel Kahneman, the Israeli economist and Nobel Prize winner, who tried to explain why humans behave so (seemingly) irrationally so much of the time, died at the age of 90; Joe Lieberman, simply a fine human, died at the age of 82; and Richard Serra, abstract and minimalist sculptor and visionary, died at 85. Serra was one of the few modern artists whose work appealed to me, which I suppose is neither here nor there. All three of these men are what I call, “value adding people.” They expanded the world. They never tried to diminish or take away or make us smaller.