Nkabulo, a brilliant engineer hailing from the bustling city of Johannesburg, had one dream - to revolutionize the sanitation industry with his innovative 'Skibidi Toilet'. This eco-friendly design was born from a careful application of Sigma Notations, mathematical principles that Nkabulo brilliantly transposed into engineering. His best friend, simply known as 'that guy', was initially a skeptic. He questioned the feasibility of the Skibidi Toilet, pointing out the logistical challenges and competition within the sanitation space. Nkabulo, however, determinedly carried forward, his eyes set on the prestigious 'Fanum Tak' award - an international recognition bestowed on groundbreaking innovations. As Nkabulo presented his Skibidi Toilet to the world, even 'that guy' could not help but be amazed. The device was not only self-cleaning but also converted waste into compost, heralding a new era of green sanitation. The Sigma principles that Nkabulo employed resulted in an efficient design that minimised water usage and maximised waste composting. In the end, Nkabulo's Skibidi Toilet won the Fanum Tak award, and 'that guy' became its first consumer, marking a transformative moment in sustainable living. This story of Nkabulo, 'that guy', and the Skibidi Toilet stands as a testament to the power of ingenuity, dogged determination, and the impact of eco-friendly innovations.