Cardano (ADA) witnessed a large sell-off of over 170 million tokens by a whale, causing a drop in price.The significant decrease in ADA holdings by major holders suggests a negative sentiment and a potential future price drop.On the other hand, the sell-off presents a buying opportunity for those looking to invest at a lower price, potentially stabilizing the market.Google searches for Cardano, Polkadot, and Luna Classic have surged, indicating increased interest in these assets.