Civil aviation in India traces its beginnings to 18 February 1911, when Henri Pequet, a French aviator, carried 6,500 pieces of mail on a Humber biplane from Allahabad to Naini.[197] Later on 15 October 1932, J.R.D. Tata flew a consignment of mail from Karachi to Juhu Airport. His airline later became Air India and was the first Asian airline to cross the Atlantic Ocean as well as first Asian airline to fly jets.[198]
Whether you take a “distribution” (aka free-cash-flow) in the form of a dividend, interest payment, capital gain, maturing ladder of a CD, etc, you are still taking the same amount of cash out of your portfolio. Don’t fall for the trap of sub optimizing your overall portfolio’s performance because your chasing some unimportant trait called “income”.

Great post Jim. While it is convenient to lump the entire dividend income as one passive stream, in reality, it is several. If you have 30 companies across 10 major industry sectors, each paying you dividends, then you can consider having 30 streams or at least 10 passive streams, from each of the diverse industry sectors. I find this more diverse than relying on rental income from one investment property tied to one location and one good tenant. Your point about website is absolutely valid – will be great to have Ten Factorial Rocks worth 7 figures in less than 5 years as you have done!
If you watched the video, he goes into a discussion about shocks (about 8 minutes in) like bad investments but how they don't really matter as much if r (rate of return) is greater than g, the rate of economic growth. If r = 5% and g = 1%, then you can lose 80% (the difference) and still be ahead because the return on the remaining 20% has paced with economic growth.
The theoretical generalization to more than one period is a multi-period wealth and income constraint. For example, the same person can gain more productive skills or acquire more productive income-earning assets to earn a higher income. In the multi-period case, something might also happen to the economy beyond the control of the individual to reduce (or increase) the flow of income. Changing measured income and its relation to consumption over time might be modeled accordingly, such as in the permanent income hypothesis.
E-Commerce is growing on a huge scale globally, including India. It can be a source of your second income and you can earn lakhs of money on monthly basis. You don’t need a big amount of investment to start your E-commerce business. You can create your own eCommerce website without any hassles, or you can also hire a professional to create your website. Once a website is set up, invest a bit in digital marketing of your website and its products/services and you are all set! E-Commerce business can provide you with a source of income on regular basis without much effort. You do not need to set up a physical office or hire hundreds of employees unless you want to be the next Flipkart. Even a small eCommerce business can fetch decent monthly earnings without much spending or hassles.
Maritime trade was carried out extensively between South India and Southeast and West Asia from early times until around the fourteenth century AD. Both the Malabar and Coromandel Coasts were the sites of important trading centres from as early as the first century BC, used for import and export as well as transit points between the Mediterranean region and southeast Asia.[60] Over time, traders organised themselves into associations which received state patronage. Historians Tapan Raychaudhuri and Irfan Habib claim this state patronage for overseas trade came to an end by the thirteenth century AD, when it was largely taken over by the local Parsi, Jewish, Syrian Christian and Muslim communities, initially on the Malabar and subsequently on the Coromandel coast.[61]
Portfolio income can come from multiple sources – interest/bond coupons, stock dividends, financial strategies including derivatives and capital growth.  Each offers some cash flow and some also offer potential capital gain with some risk from liquidity and volatile prices.  In this low-yield environment, many investors rely too heavily on cash flows and to pursue this are venturing further into riskier areas than they’d normally consider.