...is that there's a parcel package heading towards your
"snail-mail" address, Tom. [sent yesterday]
The open contents & open correspondence inside? You can disclose those contents to anyone, Tom..
Part of the open contents inside are a serious appraisal, part of it
is a confession of mischievousness on my part.
Good thing you two [Tom, John] didn't take up tha wager against me a few months ago, i would have WON!...
Cause I would have set the terms of the bet in MY FAVOR due to a [slight limitation; a very slight limitation] in a basic-physics equation. Naughty boy, Jacob! Naughty boy.
You'll blush in embarrassment, Tom. [wink wink!]

But to be totally serious, now...
What should you do about the sealed contents inside? You, Tom, will have to decide what to do after consultating with your friends, Gary Hudson & Marti & Nesrin.
There's enough genuine info [to make basic rule-of-thumb calculations] in the OPEN letter for you & they to make a decision
whether to open the sealed-envelope inside, or to leave it unopened
and "disposed of".
If you and your friends, Tom, are SERIOUSLY interested in the offer, open
the sealed envelope inside...if not?...You know what to do.

cheers.

Jacob