It appears you may be suggesting that 2018-present is an ongoing wave-4 Triangle, which is alternating with a wave-2 from 2011.
Personally believe this to be incorrect since the suggested wave-2 is of a lower degree with differing price, time and momentum characteristics.
Typical momentum indicators, such as the RSI, are measures of magnitude in regards to recent price changes within a defined time period, to evaluate overbought or oversold conditions. Elliott Waves of equivalent degree ought to exhibit similar momentum conditions...
We'll have to agree to disagree on this one. By time and price, the count is valid. I've gone through all rules and guidelines multiple times and there is nothing wrong there.
As for momentum and degree, the proper method (if there is one) would be
the Elliott Wave oscillator or similar measure of absolute difference. We don't have enough data to plot 2011 at the monthly time frame but EWO appears to support the referenced count (as well as your count):

It doesn't seem appropriate to apply a relative oscillator, especially at the weekly level, to determine degree on a decade long chart. It looks like you're just pointing out weekly overbought and oversold extremes. None of this is mandatory by Elliott Wave rules anyway, though I see where you're coming from.
Anyway, I appreciate your opinion, to each his own. I thought it was an alternative worth keeping in mind before assuming sub-$1K prices. If the triangle wave (a) is breached, it's obviously easy to rule out. Cheers.