Is there no concern about the dollar free fall, in any of the investing conversations?

I have tried to insert this question in the daily thread, but it looks like no one seems to care. While I still have some investments left with US brokers, I'm becoming a Iittle concerned about those, in regards to a much more sudden downward trend than anticipated, and - based on some specialized analysis sites - not to stop, but rather to further accelerate. Thoughts?