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.
After-Tax 401(k) limits. Traditional and Roth accounts share a employee contribution limit up to $17,500 per person (for the 2014 tax year), rising to $18,000 in the 2015 tax year.However, Section 415(c)(1)(A) limits total contributions to defined contribution plans to $52,000 in 2014.The limit for an after-tax 401(k) is the difference between the amount already contributed by the employer and employee, and the Section 415 limit.dvantages. 1  Subject to much higher contribution limits than traditional 401(k)s (up to $52,000 in 2014). 2  Some 401(k)s allow for in-service distributions, allowing employees to roll over funds during employment without a triggering event.