A sweet addition to 'Everybody's Fine'. Nice to see Jack all grown up. :-)
This was great as well!
I like the way you (I assume it was intended) lead us to think it was John who was talking and then when he got all scienc-y showed us it was actually Jack. Elizabeth can never escape interruptions from her menfolk!
And I adore the fact you named the whales after John and Elizabeth, I could see it coming because it was so sweet. Nice insight into their family banter.