ok fair enough---but that all boils down to investor demand. the actual cost doesn't matter---only the perceptual effect on buying/selling pressure. there is a flip side to that: if the market holds below the perceived "price where miners will prop the market" then that could reinforce fear and increase sell pressure. i could easily see price crashing to the $2000s or $3000s, miner costs be damned.
I wouldn't call such a drop "easy"!
the same size drop from $20k down to $6200 which is nearly a 70% drop was extremely hard not to mention $20k was actually a bubble going another 70% down from current price is not just "not-easy" it is in fact near impossible. not to mention that $2k is a 90% drop from ATH!
but about "fear" you are right. like anything else when the "support" or even in opposite case the "resistance" is broken it creates fear but it won't push price down drastically as you claim. just like breaking a resistance like $10k is not going to send the price to $100k.
in the same sense, the news from goldman sachs didn't actually do anything. at most, it just helped trigger a down move that was already going to happen eventually. the reason a selloff like that occurs is because people are ready to sell; sentiment is negative and the market is bearish.
I disagree. there is no more sentiment left in the market. all that's left is day traders trying to repeat the same process with similar highs and lows to make the same amount of profit. rinse and repeat like a sinus curve ups and downs.