Reno Omokri, a human rights activist, televangelist, and a former special assistant to the former president of Nigeria, Goodluck Ebele Jonathan, has made a tweet on his official Twitter handle saying that coding is a gold mine because there are 3.5 billion smartphone users on the earth.billion smartphone users on the earth.In his tweet paraphrased, the best-selling author wrote, “On Earth, there are 3.5 billion smartphone users. Coding is a gold mine because of this. You can develop an app that quickly becomes popular in the App Store. Where else might you have the opportunity to reach such a huge market with so little effort? learn to program.