For a military empire, this is crucial. Incan cities were built high in the mountains on cliffs that dropped hundreds of feet. As a result, the Incas were in great shape and were some of the best runners in history. Mountains have lots of natural resources to sustain civilization, including fresh water and food.
Because there are no income limits on Roth 401(k) contributions, these accounts provide a way for high earners to invest in a Roth without converting a traditional IRA. In 2014, you can contribute up to $17,500 to a Roth 401(k), a traditional 401(k) or a combination of the two.ecause there are no income limits on Roth 401(k) contributions, these accounts provide a way for high earners to invest in a Roth without converting a traditional IRA. In 2014, you can contribute up to $17,500 to a Roth 401(k), a traditional 401(k) or a combination of the two.
A: No. The two differ in a few key ways. First, Roth 401(k) contributions are subject to the usual 401(k) contribution limits--in 2015, that's $18,000 and $24,000. Aftertax 401(k) contributions can be higher, as long as the total 401(k) contribution doesn't exceed $53,000.More importantly, the tax treatment of Roth 401(k) contributions and aftertax contributions is different.ftertax 401(k) contributions can be higher, as long as the total 401(k) contribution doesn't exceed $53,000. More importantly, the tax treatment of Roth 401(k) contributions and aftertax contributions is different.