<p><img src="https://images.cointelegraph.com/images/840_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjItMDcvNTI2ZGFmYzQtNmM2YS00ZWJjLWJmMWUtOGQ4OWFlYmQ2NmE4LmpwZw==.jpg"></p><p>For Vasily Shapovalov, the magnitude of the proof-of-stake transition could cause unforeseeable problems. </p>