How long does it take to turn $100k into $1 million?

I'm curious, how long does it actually take to transform a sum of $100,000 into a whopping $1 million? I've heard stories of people doing it in a flash, while others seem to struggle for years. Could you please elaborate on the factors that might influence this timeline? Is it primarily dependent on investment strategies, market conditions, or perhaps a combination of both? I'm eager to understand the ins and outs of this process and how I might be able to achieve such a significant growth in my own finances. Any insights you could provide would be greatly appreciated.