People say that when you get older, time passes faster and faster.
A law established by Ernst Weber explains this phenomenon.
The subjective feeling of time passing faster and faster is due to a stimulus intensity at which one notices a difference. Noticing a difference is in constant proportion to the initial stimulus.
If you have 100 candles burning and you add one, you notice a difference in brightness. If you have 200 candles, you would need 2 new candles for a noticeable difference. If you have 300 candles, you need 3 more...
So an older person needs more time to pass to notice a difference in time.
It is because of this law that the advertising industry can increase the prices of products or make the products themselves smaller without one noticing.
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