Transaction fees aren't included in this example, either. However, you can get the per-share fee down to almost nothing when trading large blocks of shares.
Finally, if we were to expand this to 7 simple steps, we could add one small optimization: Sell your AAPL holdings on 2007-12-28, pay 15% capital gains taxes, and reinvest everything again in AAPL on 2008-11-20.
That would increase your holdings to 8,112,577 shares of AAPL, which would be worth $4.445 billion, after taxes. It would be $5.2 billion before taxes, putting you #63 on the Forbes 400 list.
If you had used a Traditional IRA and avoided capital gains taxes on each sale, you would have $9.6 billion, before taxes, with the 7-step plan. However, to withdraw it from the IRA, you would have to pay ordinary income taxes (and possibly a 10% early withdrawal penalty, but I'll skip that).
If you withdrew everything at yesterday's closing price, you'd have to pay $3.36 billion in income taxes, leaving $6.25 billion to spend as you please. You would be #56 on the Forbes 400.
Now, all you have to do is invent a machine that sends a message back to yourself a bit more than 26 years ago. If you instead sent winning lottery numbers, everyone would know your name. But, after that initial purchase of MSFT, you would be able to do all your transactions online, and the shares would be held in the name of your brokerage. No one would know except who you chose to tell.