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Apple has plowed over $500 billion into stock buybacks since 2012 — more than Visa, JPMorgan, or Exxon are worth
(markets.businessinsider.com)
This is a most excellent place for technology news and articles.
Don't bother. They've most likely only ever heard about stock buybacks on social media with little context otherwise. They have no idea the pros of buybacks, only a politically-charged subset of cons.
Prior to Reagan allowing changes, buying back stock wasn't allowed because it was seen as a manipulation of the stock market.
"Those who do not remember the past are doomed to repeat it." George Santayana