Retiring A Millionaire

Do you want to have a packed luggage and retire a millionaire? A yahoo.com article teaches people that from the age of 26, an annual 20,000 savings (in any currency), at an annual interest rate of 10%, will give out a cool 1 million come retirement age. However, what if you are way above 26? The article says that it is still possible. Of course, the amount of annual savings will have to be increased.