Buddhist perspective on uncertainty I was reading some books containing an anthology of Ajahn Chah's Dhamma Talks to both laymen and monks. In the introduction of one of those books, the translator indicated that AC used to translate 'anicca' as 'uncertainty', mainly because, to his eyes, "impermanence" seems too abstract wjen compared to the former translation; we can all relate to the experience of uncertainty, which one can say is the manifestation of impermanence in our daily lives.

While I agree that 'uncertainty' is an specially useful translation, even more when considering the target audience (laymen, unacquainted with buddhist terminology), I'm confused about the accuracy of such rendering when trying to stick to the canonical teachings. 

What did the Buddha told about the relation between impermanence and uncertainty?

If we're to believe the texts literally, there are multiple occasions when the Buddha was able to see into future of some individuals. Does that tell us that life may seem uncertain only most people, to those who don't possess such gifts and abilities, but that in the end, reality is "fixed" and already determined? Is reality and future events actually uncertain?

Thanks in advance for your time and patience!
Your health, wealth, reputation, career, family are all impermanent. Your life is also impermanent. Nothing lasts forever and everything changes over time. Nothing bad like disease and death can be avoided forever. Nothing good like your loved ones can be preserved forever. This is anicca.

This causes uncertainty for individuals when they think about their future. Uncertainty is one way to summarize the effect of impermanence. Uncertainty is maybe a more directly meaningful term to people than impermanence.

Anicca is also discussed in the context of the five aggregates being impermanent and in fact, all conditioned things being impermanent and changing.

The Buddha saw only a limited future based on cause and effect. Just as if you see the cloudy sky and forecast rain. The Buddha's prediction of the future is not because all events in the future are fixed and predetermined.

In Buddhism, the only thing that's permanent and fixed is Nibbana.