Im no expert but since you tagged me, all this is not very relevant to me. It looks good in hindsight. Mkt participants are continuously evolving and alot of other factors.
It did go from 100 to 140 too, ask who drove that.
Same chart will say, wait till it comes to 50 then buy.
And for most people if NS came to 10k, they will say wait till 5K and so on until 500.