There are two main reasons crude oil prices keep rising. The first, of course, is demand, and the other is control of supplies by OPEC. Demand for crude oil is set to top out in the longer run with increasing use of renewables, reduced use of automobiles by millennials and similar developments. In the shorter run, the higher crude oil prices go, the more do alternate sources of oil - like fracking and increasing supplies of LNG and natural gas.
An interview of Howard Marks, co-chairman and co-founder of Oaktree Capital. He says "You didn’t need caution, conservatism, risk control, patience, selectivity, discipline, any of those things. All you needed was money and nerve.”
This is an audio interview, with the link given within the linked article.
There are a surprisingly large number of wrong assumptions about investing which are blindly accepted as facts. This amusing piece from The Motley Fool lists 50 of them.
The first bubble on the BSE dates back to 1863 when the American Civil War began. The conflict choked the supply of American cotton, and importers turned to India. This caused a massive boom in cotton and related stocks, and the commodity was nicknamed "White Gold". The bubble enriched traders beyond their wildest dream, and stocks across the board joined the rally.
However, the bubble met with a familiar end - the end of the Civil War brought about a massive crash, and with it a swathe of bankruptcies.