Looking at major tops and bottoms of BTCUSD in the last 4 years and noting the price action of USDT.D at same intervals, several patterns have been noted.
Overal trajectory is an upward channel with BTCUSD tops marked by a touch on the lower channel, and BTCUSD bottoms being bormed when USDT.D breaks above the parallel channel and forms a double top or triple top pattern.
The 4 horizontal lines (in yellow) start from when USDT.D crosses the upper channel for first time after a BTCUSDT bear market and it extends until USDT.D touches it near the bottom of the channel, marking the next BTCUSD cycle top.
Based on these patterns, the next 1 to 2 years price action can be hypothesized, suggesting a USDT.D bottom around late 2023 / early 2024 (with inversely correlated BTCUSD marking a top).
If USDT.D does a double bottom along the parallel channel (as it did in 2021), then BTCUSD could make a higher ATH later in 2024 or early 2025, before the next major bear market ensues.
Chart image below is from August 2022, with top marked before it topped out.