Learning by Answering Questions (Reddit)

TEMP Reddit Journal Entry

Over the last couple of years I’ve become aware of a new way in which I learn things. It is a sort of consolidative learning.

Since I’ve retired, one of my activities has been to learn about geology. That mostly involved taking classes or reading books; occasionally it happens via going on field trips, but those are pretty few and far between. But, over the last few years, I’ve become of a new way I learn things – or perhaps it is better to say consolidate what I already know, or connect the dots…

Geology Subs

It involves reddit, which I visit nearly every morning, in response to the daily email that alerts me to new activities in the subs I follow. These are primarily geology-oriented subs like “whatsthisrock” “askgeology,” and “rockhounds.” Initially I visited because I wanted to get better at identifying field specimens of minerals, and identification requests, and the ensuing discussion, make up a significant portion of the content. After a while, I began weighing in on the debates, and came to recognize areas – such as mafic igeneous rocks – where I had something to contribute.

LS: Land Above the Trees: A Guide to American Alpine Tundra, Ann Zwinger & Beatrice E. Willard

February 2024…

This book was recommended in Kim Stanley Robinson’s The High Sierra: A Love Story, as a good guide to the ecology and botany of the Sierra Nevada (and the upper portions of other North American ranges). And, indeed, it is beautifully written with a narrative style in which the reader moves through landscapes with the authors, looking at this and that, in contrast to what I had expected would be more of a catalog or encyclopedic approach. The book is divided into two principle parts: part 1 examines elements of ‘above the trees’ ecosystems, like fellfields or krumholtz; part 2 looks at particular North American tundra ecosystems, with one chapter being on the Sierra Nevada.

BG: Medici Money: Banking, Metaphysics, and Art in Fifteenth Century Florence, Tim Parks

February 2024

Book Group: Medici Money: Banking, Metaphysics, and Art in Fifteenth Century Florence, Tim Parks, 2005.

My initial impression, after one chapter, is that it will be a pretty straightforward read – it is not clear to me if it will be anything other than a slightly-dramatized history of the Medici’s. Parks is not a historian, cites no references, and has a 4-page “Bibliographic Note” which makes it clear that he doesn’t think much of academics. All this does not make me optimistic.

Final impression: My initial impression was accurate, but I did learn some very general things.

Most interesting was to understand how chaotic the Italian City States were at the time.
- There were continual wars conducted by mercenary armies; citizens were taxed to support the wars, and some smaller towns were sometimes looted or ravished, but mostly the wars didn’t involve civilians
- Many governments were nominally ‘elite republics’ that were governed by councils of members of powerful families, but in practice it appears that one family would typically be in power, and would uses a combination of nepotism and favoritism to stay in power.
- Italy consisted of five power centers that were continually shifting alliances: Naples in the south, Rome farther north, and then Milan, Florence and Venice. When one would become dominant, a couple others would enter an alliance against ti.
Also of interest was the way banks worked
- While banks loaned money and effectively collected interest, that counted as usury and so they used various facades to avoid the appearance of usury
- Banks also needed to participate in trading to create means of getting repayment for their investments
- Bankers also, apparently because they were really concerned about their souls, cultivated close relationships with the catholic church to achieve absolution.
As time went on
- the Church became more and more corrupt, and became of less use as a way of allowing bankers to ‘purify’ themselves by association
  - bankers, in an effort to cultivate a high social status, made more and more loans to princes and others who could not be counted on to repay them in anything but social capital.
  - the generations of Medici morphed from
    (1) just bankers who kept a low social profile (e.g., Giovani),
    (2) bankers and behind-the-scenes political operators (e.g.,Cosimo);
    (3) primarily politicians and elite patrons with little compentence in banking (e.g., Lorenzo)