What are the 7 levels and the number of hours for each one based on?

The levels in our roadmap were initially based on the experiences of thousands of students that learned Thai with comprehensible input at AUA, and contrasted with Pablo’s experience learning languages that are related to his first language, and languages that are completely different. Since creating our roadmap, we have received tons of feedback from students that have repeatedly reported being surprised at the accuracy of the length and the descriptions of the different levels. Nonetheless, there are always factors that are going to make some people learn faster than others, so the roadmap can’t be 100% accurate for everyone.