Mr. Kalanick, with salt-and-pepper hair, a fast-paced walk and an iPhone practically embedded in his hand, is described by friends as more at ease with data and

Mr. Kalanick, with salt-and-pepper hair, a fast-paced walk and an iPhone practically embedded in his hand, is described by friends as more at ease with data and numbers (some consider him a math savant) than with people. I chuckled a little bit reading this.