Crypto analyst Lark Davis has suggested that the introduction of a spot Bitcoin ETF could trigger a longer bull run for Bitcoin compared to the historical 8-year cycle of gold ETFs. Davis highlights the rapid pace of institutional adoption for Bitcoin, which he believes could lead to a multi-year bull phase. This perspective has sparked discussions among analysts about the potential end of the traditional 4-year crypto bull cycle, with some forecasting a possible 5-year supercycle instead.