<p><img src="https://images.cointelegraph.com/images/840_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjItMDgvMzk3NmQ4OTctOTA2YS00NDdhLWI0MzItODhiMmQ2M2FmMWVkLmpwZw==.jpg"></p><p>Bitcoin could well sink below the $20,000 mark again, traders warn, with price targets now as low as $16,000.</p>