If #BTCDOMINANCE rises above the dashed green line that is the retest level of the decline and $BTC is still declining in this case, the second legs of declines may come for #altcoins too.

Similarly, #USDT.D is also momentarily above the retest level of the decline, above 4.15%, supporting the negative scenario I wrote above.

These levels can be followed to get additional confirmation of what I explained in the BTC Analysis post.