I think that, for the overwhelming majority, the question of authenticity doesn't arise, since they are sufficiently in touch with reality. There may be some who, being perhaps unsophisticated or unaware of events, require updating before being convinced. Dealing with the conspiracy theorist is a different matter. To deign to point to the particular - e.g. the reflectors - as evidence, is a waste of time. Worse, it plays to the tune of the pathologically deluded. They have in place a mental barrier between their 'theory' and the deluge of data that we refer to as the real world. The typical response to any threat to that barrier is agitation and aggression.
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"Time is what prevents everything from happening at once" - John Wheeler