We might have guessed it as kids, while eating our peanut butter and jelly sandwiches. There are simple signs that you and your best buddy could become a power couple. In other words, that you’ve the potential for greater creativity and fulfillment thanks to your couplehood.

Neuropsychologists are proving that, as a consequence of being intensely connected — or just downright together for a long time —  some couples share “one mind.”

In his book “Powers of Two,” Dr. Joshua Wolf Shenk explains how a “shared mind” is the foundation of creativity and innovation, which by the way happens to also be the pinnacle of a marriage’s vitality. That is, after the obvious business of admiration and compassion, the zest of life depends upon how well we make each other’s — as much as our shared — dreams possible.

Not everyone is in a romantic relationship. Statistically, more than half of us are not.  With that said, if we think more factually and less like Disney’s Magic Kingdom, we don’t have to be romantically involved to enjoy the power of pairs. Throughout history, platonic partners have buoyed each other. Think of Lennon and McCartney , Steve Jobs and Steve Wozniak, Warren Buffett and Charlie Munger, or Vincent and Theo van Gogh.

So what are the most obvious signs that you and your partner got something special going-on?