So, if a diversified investor is not efficient enough to utilize the incomes, then his incomes is said to be void in as much as you don't keep a reliable bankroll and you don't stress on achieving great things.
Let's discuss!
The only time diversifying your income could be a bad option is when the person doesn't have what it takes to managing the different sources of income if not the best thing to do as someone that's currently earning from a single source is to put your savings into another source that can still fetch you more income. You can't be 💯 certain about what can happen to your job in the future so it's always best to invest into other sectors so in case a sector is having some downtime, you could easily sustain yourself from another sector while waiting for things to get better in the bad sector.
I understand the power of specialisation in a choosen field and how it can boast your productivity to a very large extent but with regards to job and financial security, I'm not a big fan of over deo ndence on a single streams of income.