Re: How long does it really take?
Training 4 hours a day 6 days a week will net roughly 1,152 hours of training in a year. Training twice a week for 2 hours a session will net roughly 192 hours of training a year.
In 10 years the full-time Aikidoka will have put in 11,520 hours, which according to Malcolm Gladwell (*grain of salt*) is just past the 10,000 hours minimum needed to "master" something.
The part-time Aikidoka will have put it 1,920 hours after 10 years. To hit that 10,000 hours mark it would take the part-timer roughly 52 years.