Post #7900 by Captkerosene on the Berkshire Hathaway board

Stocks A to Z / Stocks B / Berkshire Hathaway (BRK.A) ❤

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They note that the Technology sector now represents 30.6% of the market cap weight of the S&P 500 now (highest since 2000). From 2002-2019 the fraction mostly hovered pretty consistently around 15.5%-16%, give or take a percent, so it has basically doubled from what was normal for a long time.
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I wonder how much of the cap weight preponderance is owing to the advent of AI, a technology that inspires fearful anticipation in the 99.9...9% who aren't attempting to financially exploit it.

Unq

My quick guess is half. People are positioning themselves early for what they think will be massive.

There is always the chance that AI progress will stall or that momentum will turn.

This guy pretty well states the AI optimists view in seven minutes:

https://www.youtube.com/watch?v=bfsjJv_2XBw

Sorry for the Tesla references.

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