Bitcoin (BTC) may have hit highs of $60,000, but calculations suggest that the price level will matter much more to bears, not bulls.In a tweet on Oct. 14, popular Twitter account TechDev again highlighted historical data which has so far accurately tracked Bitcoin’s highs and lows.How about an 80% BTC price crash to… $60,000?While BTC/USD is tipped to retake all-time highs and climb to six figures this year, investors’ attention is already turning to how far Bitcoin will fall after its next blow-off top.The idea that BTC price action moves in cycles — with a bearish phase and a bottom of 80% of the blow-off top — has become widely accepted.What is much harder to believe in current circumstances, however, is that $60,000 may just be the price floor of that potential 80% correction.Using Fibonacci sequences, TechDev showed that each Bitcoin bear bottom fell within an identical range. This accounts for both the sub-$200 lows in 2014 and the roughly $3,200 floor in December 2018.Given Bitcoin’s cyclical metamorphoses, the next logical retracement therefore has anywhere from $47,000 to $60,000 as a target.”I know no one cares about macro during a pump. But the last two BTC bear markets bottomed in the 1.486-1.618 log fib pocket of the previous cycle,” he commented. “Suggests the next bear bottom is 47-60K. If that’s where we land after an 80-85% fall… The math gets fun.”BTC/USD annotated chart. Source: TechDev/ Twitter$60,000 as 20% of the top puts Bitcoin in line for a test of $300,000 this cycle.Uncanny resemblances to goldThe momentum behind Bitcoin has been tied to expectations that United States regulators will finally approve some form of Bitcoin exchange-traded fund (ETF).Related: SEC likely to allow Bitcoin futures ETF to trade next week: ReportsWhile opinions on the impact of such a decision are mixed, its importance is no red herring, commentators say, and marks a genuine watershed for Bitcoin which cannot be reversed.Austrian investor and analyst Niko Jilch this week referenced famed investor Paul Tudor Jones while explaining the “excitement” over the Bitcoin ETF.Tudor Jones had previously highlighted Bitcoin’s cycles being similar to gold in the 1970s — just when it had become a futures product itself and enjoyed a ten-year bull run followed by a 50% correction.Gold’s 1970s rip, TechDev additionally notes, fits extremely neatly over Bitcoin’s performance since October 2020.#BTC / 70s gold fractal check…Now it’s just getting ridiculous. pic.twitter.com/QOfJuwpceq— TechDev (@TechDev_52) October 15, 2021