Morgan Matson said this quote

I saw the statue completely different now. I'd decided that he wasn't pointing to anything or anyone. Now all I could see was that he was reaching out his hand to someone. For me that explained the expression on his face that I'd never quite been able to understand before. He was hopeful and nervous and scared and a little bit proud of himself for doing it - extending his hand to someone, not knowing if they'd take it. This was, I had realized, one of the scariest things of all, requiring much more courage than sailing across an ocean and landing on an unknown shore At least that's what I saw. Clark and Tom's new theory was that he was a time traveler who'd somehow been transported to the past and was just trying to hail a cab.