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.
You can make money whichever way floats your boat. I got a lot of slack in this post for trading forex, but I live in one country, and need currency from three other countries where I own property and travel to often, so when one currency is cheap, I do take advantage of fluctuations. It may not be your thing, but the important part is that you have more than one source of income.

Mining contributed $63 billion (3% of GDP) and employed 20.14 million people (5% of the workforce) in 2016.[153] India's mining industry was the fourth-largest producer of minerals in the world by volume, and eighth-largest producer by value in 2009.[268] In 2013, it mined and processed 89 minerals, of which four were fuel, three were atomic energy minerals, and 80 non-fuel.[269] The government-owned public sector accounted for 68% of mineral production by volume in 2011–12.[270]

In 2017, I ended up deploying roughly $611,000 into stocks and $604,327 into municipal bonds. The stock allocation should boost dividend income by about $12,500 a year, and the municipal-bond portion should boost income by about $18,000 a year after tax ($26,000 pre-tax). Therefore, total passive income gets an about $38,500 lift, which recovers over half of my $60,000 loss from selling the house.
The doctor or lawyer, for instance, could use her or his income to invest in a medical start-up or buy shares of medical companies he understands such as Johnson & Johnson. Over time, the nature of compounding, dollar cost averaging, and reinvesting dividends can result in her or his portfolio generating substantial passive income. The downside is that it can take decades to achieve enough to truly improve your standard of living. However, it is still the surest path to wealth based on the historical performance of business ownership and stocks.
According to the report of The National Association of Software and Services Companies (NASSCOM), India has a presence of around 400 companies in the fintech space, with an investment of about $420 million in 2015. The NASSCOM report also estimated the fintech software and services market to grow 1.7 times by 2020, making it worth $8 billion.[211] The Indian fintech landscape is segmented as follows – 34% in payment processing, followed by 32% in banking and 12% in the trading, public and private markets.[212]

Do you know Music ? Are you an expert in Maths ? Vedic Maths ? Yoga or may be cooking ? Do you live in a residential society which has 100’s of other families? Then tutions is a perfect thing you can start give you are good at what you claim to. You can always dedicate 2 hours (if you really have them) and do some basic advertising in your apartment or nearby places and take students to teach them at home. The best part of this kind of tutors is that you refresh your dying knowledge, earn some money at the comfort of your home and you kill time which goes into unproductive things most of the times. myprivatetutor.com is a good place to register and start with.

Most earners__ salaried or businessmen__work hard to earn money for the family and the self. However, not all of these people, after they have earned money, also make their money work hard to generate some extra income. There are quite a few options which people could use to earn some extra income. Two of those routes are putting a small part of your hard earned money into Liquid Funds and/or accrual funds. Investing in these funds could also help retired people to earn some extra income. And if they are already getting pension, earnings from these funds could work as a source for a second income for them.
British territorial expansion in India throughout the 19th century created an institutional environment that, on paper, guaranteed property rights among the colonisers, encouraged free trade, and created a single currency with fixed exchange rates, standardised weights and measures and capital markets within the company-held territories. It also established a system of railways and telegraphs, a civil service that aimed to be free from political interference, a common-law and an adversarial legal system.[108] This coincided with major changes in the world economy – industrialisation, and significant growth in production and trade. However, at the end of colonial rule, India inherited an economy that was one of the poorest in the developing world,[109] with industrial development stalled, agriculture unable to feed a rapidly growing population, a largely illiterate and unskilled labour force, and extremely inadequate infrastructure.[110]
Needs and expenses never-end! Nobody has ever remained content with what they have and what they are. Everyone has a desire to get more and better of everything. However, in today’s age of inflation, just the monthly salary is hardly enough to meet the needs; spending on desires is just impossible. It has become important for the middle-class salaried group to have a secondary source of income, apart from their salary, which can be used to spend on desires. A low bank balance causes stress and tension for many and impacts their health as well. However, all these financial stresses can be eliminated by earning an extra amount or a second income, even if you have a full-time job.
Others may define it more narrowly, but to me, PPC arbitrage basically involves setting up PPC ads (via Google AdWords or similar platform) and directing the traffic that results from ad clicks to a landing page or straight to an affiliate link (which many platforms don’t allow anymore).  The goal is obviously to earn more from the affiliate income than spent on the ad clicks.  You aren’t adding any value, but merely earning more from traffic than what it costs you to generate that traffic.
During my first year as a financial advisor, I got a small base salary. After that, it was up to me to figure out how to find and retain new clients. Fortunately, I quickly learned how to market myself, meet new people, and set myself up for success. And over time, I made the connections I needed to grow my base of clients, earn a real income, and produce the type of results my clients wanted.
We encourage a more holistic, total return approach to your sustainable spending needs from investments.  An improved portfolio includes a wide range of income sources providing both cash flow and capital growth.  Your chosen blend should match your overall financial goals, considering your tolerance for risk, time frames, income and liquidity needs with a spending rate that sustains the investor’s wealth.