At his one month birthday yesterday, my grandson Silas weighed 10 pounds, 12 ounces, which represents a 40% increase in weight since his birth on December 16.  If I had increased my weight by 40% since December 16 I would have gone from 170 pounds to 238 pounds!

My daughter also reports that Silas has “figured out how to guide his hand into his mouth to chew on his fingers.”

I wonder what the developmental equivalent would be for me?