Cardano (ADA) price risks a decline amid the upcoming Ethereum Pectra upgrade as historical patterns indicate that network improvements on ETH have not always boded well for ADA. Pectra is going live today, May 7, and Cardano is defying the odds with an intraday gain of 2% at press time. However, will history rhyme and force ADA to plunge and possibly lose crucial support at $0.66? Let’s explore.