Ok, so you are already admitting that a straight $20,000 investment, without reinvestment will not receive the gains you are promising. Thank you for admitting that much. I kindly request you change your article to address that mathematical flaw.
In retrospect, in order to stay ahead of the difficulty and the inflation of new antminers, you will have to invest anywhere from, $25,942 dollars to $33,554 over a year's time based on very conservative increases of .5% and 1% reinvestment increases each week for 52 weeks.
The numbers get staggeringly higher should a higher amount of reinvestment be required each week.
RE: What $20,000 of Bitcoin Mining Power Looks Like!