More than 20 years ago, the psychologist Arthur Aron succeeded in making two strangers fall in love in his laboratory. Last summer, I applied his technique in my own life, which is how I found myself standing on a bridge at midnight, staring into a man’s eyes for exactly four minutes.

Let me explain. Earlier in the evening, that man had said: “I suspect, given a few commonalities, you could fall in love with anyone. If so, how do you choose someone?”

He was a university acquaintance I occasionally ran into at the climbing gym and had thought, “What if?” I had gotten a glimpse into his days on Instagram. But this was the first time we had hung out one-on-one.

“Actually, psychologists have tried making people fall in love,” I said, remembering Dr. Aron’s study. “It’s fascinating. I’ve always wanted to try it.”

I first read about the study when I was in the midst of a breakup. Each time I thought of leaving, my heart overruled my brain. I felt stuck. So, like a good academic, I turned to science, hoping there was a way to love smarter.

I explained the study to my university acquaintance. A heterosexual man and woman enter the lab through separate doors. They sit face to face and answer a series of increasingly personal questions. Then they stare silently into each other’s eyes for four minutes. The most tantalizing detail: Six months later, two participants were married. They invited the entire lab to the ceremony.

“Let’s try it,” he said.

Let me acknowledge the ways our experiment already fails to line up with the study. First, we were in a bar, not a lab. Second, we weren’t strangers. Not only that, but I see now that one neither suggests nor agrees to try an experiment designed to create romantic love if one isn’t open to this happening.

I Googled Dr. Aron’s questions; there are 36. We spent the next two hours passing my iPhone across the table, alternately posing each question.

They began innocuously: “Would you like to be famous? In what way?” And “When did you last sing to yourself? To someone else?”

But they quickly became probing.

In response to the prompt, “Name three things you and your partner appear to have in common,” he looked at me and said, “I think we’re both interested in each other.”

The questions reminded me of the infamous boiling frog experiment in which the frog doesn’t feel the water getting hotter until it’s too late. With us, because the level of vulnerability increased gradually, I didn’t notice we had entered intimate territory until we were already there, a process that can typically take weeks or months.

I liked learning about myself through my answers, but I liked learning things about him even more. The bar, which was empty when we arrived, had filled up by the time we paused for a bathroom break.

We all have a narrative of ourselves that we offer up to strangers and acquaintances, but Dr. Aron’s questions make it impossible to rely on that narrative. Ours was the kind of accelerated intimacy I remembered from summer camp, staying up all night with a new friend, exchanging the details of our short lives. At 13, away from home for the first time, it felt natural to get to know someone quickly. But rarely does adult life present us with such circumstances.

The moments I found most uncomfortable were not when I had to make confessions about myself, but had to venture opinions about my partner. For example: “Alternate sharing something you consider a positive characteristic of your partner, a total of five items” (Question 22), and “Tell your partner what you like about them; be very honest this time saying things you might not say to someone you’ve just met” (Question 28).

It’s astounding, really, to hear what someone admires in you. I don’t know why we don’t go around thoughtfully complimenting one another all the time.

We finished at midnight, taking far longer than the 90 minutes for the original study. Looking around the bar, I felt as if I had just woken up. “That wasn’t so bad,” I said. “Definitely less uncomfortable than the staring into each other’s eyes part would be.”

He hesitated and asked. “Do you think we should do that, too?”

“Here?” I looked around the bar. It seemed too weird, too public.

“We could stand on the bridge,” he said, turning toward the window.

The night was warm and I was wide-awake. We walked to the highest point, then turned to face each other. I fumbled with my phone as I set the timer.

“O.K.,” I said, inhaling sharply.

“O.K.,” he said, smiling.

I’ve skied steep slopes and hung from a rock face by a short length of rope, but staring into someone’s eyes for four silent minutes was one of the more thrilling and terrifying experiences of my life. I spent the first couple of minutes just trying to breathe properly. There was a lot of nervous smiling until, eventually, we settled in.

I know the eyes are the windows to the soul or whatever, but the real crux of the moment was not just that I was really seeing someone, but that I was seeing someone really seeing me. Once I embraced the terror of this realization and gave it time to subside, I arrived somewhere unexpected.