The biggest barrier is making the choice to learn a new skill - which has been a huge barrier for humans since the beginning of time. For example, learning Spa

The biggest barrier is making the choice to learn a new skill - which has been a huge barrier for humans since the beginning of time. For example, learning Spanish would be a huge asset where I'm from (Texas). Hardly anybody does it, however, since it is hard to learn a new language. A new website that cuts the time to learn a new language from 6 months to 3 months wouldn't cut it for the vast majority of people.