$ETH/$BTC chart structure mirrors 2017 and 2021 pre-rally setups. Same compression, same bottoming pattern before the big move.

If history repeats, we're looking at a major altcoin run into 2027. The ratio's been coiling for months — this is the setup before $ETH and alts rip against $BTC.

Watch for breakout confirmation above key resistance. If it holds structure, we're early to the next alt season. Invalidation if we lose the range low and make new lows on the ratio.