Science behind Time

I usually watch documentaries to understand the concepts of time. Below are a few that serves as bite sized information and summaries

On my own reflections , I came to a conclusion that if we question time , then we should question reality and also our rationality [conciousness] . This video summarizes the scientific explanation of our reality and perception of time and also gives insight of the human fallibility. Our understanding of  time is deemed to be easily manipulated and physically changed [ Brain undergoes actual physical change ]