Only the foolish learn from his own experience — the wise learn from the experience of others
It is not a human nature to learn from the other’s experience. The wisdom from king Solomon in the Bible said that “What has been will be again, what has been done will be done again; there is nothing new under the sun “ (Ecclesiastes 1:9-14).
It is particularly true in the area of common foundation and building blocks. The notion of “There is nothing new under the sun” is that whatever your changes are, it is very unlikely that it is first challenge of this type in the human history, there must be someone else have the similar challenge before. Therefore, It is much easier to overcome the challenge by learning from similar experience instead of take on the challenge as if no one else have done it before
We learn from others, so, I hope others learn from Old /Addis-Ethiopia’s experience