Nigeria, May 9 -- Bill Gates, the billionaire tech pioneer and co-founder of Microsoft, has unveiled an ambitious plan to give away the entirety of his fortune within the next two decades.

In a reflective essay published on his personal blog, Gates announced that the Bill and Melinda Gates Foundation, one of the world's largest philanthropic organizations, will officially shut down on December 31, 2045. This marks the final phase of what he calls the "last chapter" of his career.

According to Forbes, Gates is currently worth an estimated $113.8 billion at age 69. However, he estimates his net worth at $108 billion, a fortune he now intends to spend entirely on global development and humanitarian causes. Though not entirely unexpected gi...