Yes that's right, it's common among traders/speculators and...

Yes that's right, it's common among traders/speculators and investors do the opposite (plainly we are a infinitesimal minority among those who trade in common stocks).
At the core an investor looks to buy an asset at a good price for the income stream where a speculator buys because their gut or some ducking candlestick thing says the price is going up.
Maybe :s
No one says does that million dollar house make sense relative to the rent?
The results should be obvious to anyone who lived through the GFC.
"Those who cannot remember the past are condemned to repeat it".