@igm,
I suppose so, but I find it fascinating that "what's so obvious" is transformed into "does reality exist?"
Our reality is our (limited) perceptions, observations, and actions. Those are the FACTS of life on this planet.
To prove that our perceptions are limited, all one needs to do is compare our limited senses to other animals. The only advantage humans have is our ability to record history, communicate through languages, and create things from the "raw" materials available to us.
We are limited by our biology and environment. That we can send instruments to mars is an achievement of man that truly confirms our "reality."