Earlier quoted context omitted.
but they have 30 years to reach that. The historical average is probably brought down by much more mature companies. Most tech corps today are 20+, hell Apple and Oracle have almost same P/E at 20 which might be the new average for tech. 10:1 is low.
Yeah, I was thinking of the 30-60 year timescale. The higher P/Es you're talking about are either the result of suckers or the result of expectations of continued substantial growth over the next decade or three. The historical average is brought up by companies like Apple and Oracle. Long-run stable P/Es could rise if the internal rate of return of the economy as a whole fell, so that a good safe investment was one…
I like your general logic - but I disagree strongly with your prediction that buying solar panels will generate 40% return on investment (in year 1!) in 2029.