Beautiful article. Absolutely loved it.

It touches the core elements of human experience. From the social point of veiw, on one hand we create and produce, on the other hand we appreciate and use. While guitar picker benefited financially with your donation, that action of gifting goes beyond financial benefit, as it shows an appreication of his art. If everybody practiced philanthropy, there would be no starvation or poverty on this planet and those who give would benefit most.

Our human experience makes us inter-dependent on each other, hence barter is a necessity. While as you point out barter today could be inefficient compared to cash, it is still essensial part of our social experience. We give/exchange gifts during holidays, birthdays, and on vairous occasions. We echange food we our neighbors. Gifting and giving is part of what makes us humans.

While blockchain technologies have great potential in improving the efficiency of bartering or transacting, Steem definitely has the upper hand since it is also a social platform.