Its funny, I'm the opposite, there's so many things I'm passionately interested in. The hard part is picking one or two. My one day I'll have to get back to that list is enough for a couple of lifetimes. I try top pick the ones that are the most useful, or perhaps least useless. Keep looking you'll find something.

I'm more like you. Into math, music, fitness, nature, literature, movies...

but can I actually say I'm "passionate" about any of them? On any given day, I've likely spent zero time or effort on at least one of the above. Simply can't have a day when I've studied math (beyond cursory readings on the phone), practiced an instrument, worked out, hiked/camped, read, AND watched a movie

Its hard, I found I just have to pick a few I like the most and leave the rest go, I promise myself I'll get back to them but it seems less likely as the years go by. On my holidays I usually get back to something.

Are you passionate in the same way the commenter's friend meant, though? Passion means different things to different people, and maybe his friend was expressing his desire to be more passionate, which actually sounds like a trait you share with him, considering you're not more passionate about any one particular thing over other things.

Yeah... although passion and obsession aren’t the same. Passion is the more palatable and friendly version of obsession. The use of ‘obsession’ by pg is deliberate. The set of things you can be passionate about is much more limited, often constrained by your perception of what others will think. We (over)share our passions but hide our obsessions.