As I discussed in the link below, what my brother and I witnessed in daylight in 1961 was much more than a flickering light. It was a solid spherical object hovering motionless for about 10 minutes, nearby and unobstructed in the afternoon sky on Long Island, NY. It could not have been the imagination (or visual hallucination) of an 11-year-old boy running wild!!! https://medium.com/on-the-trail-of-the-saucers/irrational-disbelief-of-ufos-1865f93226c4