[PerceivedToBe]

I have a different opinion on the growth of the betel nut tree. My thought is that as the tree grows, the shoot points upwards and opens outwards as leaves. The older, lower leaves will eventually wither and drop to the ground. The leave base does not grow in height. Thus, the signage's height should have remained!

alright, since Fit argued the hypothesis, all sensible answers get a point