"このごろ世の中は非常に速く動いているのでそれはできないと言う人はそれを実行している誰かに大抵途中で邪魔される。"

Simplified Meaning:

In today’s world, things change and progress really quickly. If someone thinks something can't be achieved and says so, they are often proven wrong pretty fast by someone else who goes ahead and does it. For example, years ago, people thought it was impossible to have a phone without buttons. But then, smartphones with touchscreens were invented, showing that what seemed impossible could actually be done. This quote teaches us not to be discouraged or negative about new ideas or challenges. Instead, we should try to be open-minded and willing to find ways to make things work. If you believe something is too difficult or can't be done, remember that someone else might come along and succeed, so it’s better to stay positive and innovative.