I'm about 40 years old and don't have anything near what I'd like saved in my Roth IRA. As of right now I have the majority of my money invested in large cap mutual funds. I like the idea of target date funds so I don't have to be an investing expert. I understand the fees and expenses can be greater than many funds, especially index funds. Also I'd want to invest all my money in one single target date fund. Would it be a good idea to pick a target date fund farther into the future than my target retirement date, assuming I retire at 65, given my age I would normally choose a 2040 or 2045 fund. So would picking a fund with a more aggressive strategy like a 2060/2065 fund be a good idea?