Quantum computing in real life

Quantum computers are collections of specialized quantum systems that can be systematically controlled over a period of time to perform a desired task. QC is not a replacement for current computers and may not solve problems where you don't need complex calculations. As an analogy, you can see light bulbs versus candlelight as equivalent to QC versus current computers. It doesn't matter how much advancement you put into candles; you cannot convert candles into light bulbs—they are entirely different technologies.

Let's take an example of choosing the seating arrangements for 15 people. At first glance, it may look straightforward, but if you calculate, there are more than 1.3 trillion (factorial of 15) possible ways to seat just 15 people. Imagine if you needed to solve this problem for 100 people: you would run out of memory and compute. Classical supercomputers don't have the working memory to hold the countless combinations...