$BTC Dominance - what does this mean?

Bitcoin dominance fell to a levels unseen since 2018 bear market and rebounded confirming it as support.
However, currently letting go on local day support as well as breaking out from bearish raising wedge formation.

Short-term this is reflecting well on altcoins but looking at the bigger picture will such low levels of bitcoin dominance be healthy and sufficient to resume the bull market? Not quite sure.