Our DS seemed to spontaneously start counting also. Was in the bath one day at about 16 months and I heard him counting to 10 (we had received foam numbers from a friend). Then realized he knew the whole alphabet and recognized all the numbers and letters independently.
He asked us to write them for him and we wrote up to 99, and he picked up the patterns and numbers seemingly immediately. THe day I wrote down 100 he was so excited he could not sleep. By two we realized he was reading, counting by 10s. I am constantly amazed and enormously humbled in the presence of this sweet child.
