yes there is an excellent "response" that you can give them, which is what i always use.
bitcoin is NOT an investment; it is a currency.

although you can still worry about the "currency" devaluation but when you look at bitcoin as a currency you no longer worry about "crashes" that much.

the answer depends on why you are asking

if you are just curious about the possibilities then yes, it is possible that bitcoin price falls below $20k or even to drop to zero.
but if you are asking because you want to plan on buying below $20k then i have to say it is not possible and don't waste your time. continue living your life knowing that you couldn't catch the ride and watch bitcoin reach $1 million

you didn't finish your title and from your comment it seems like you plan on reaching profit in a very short time as gamblers do. if that is the case then my answer is no because it is never a good idea to buy bitcoin and expect it to give you a lot of profit quickly. it has never ended well for anyone who has done something like this.
short term movements of bitcoin are as unpredictable as they are brutal. you can lose your mind over it.

i don't think it has anything to do with the current price action because they (among others) have been trying to get SEC to approve their ETF for a very long time. it seems like they try at least once a year if not more. they did it even when price was falling in 2018 and 2019 and haven't given up yet.
it is interesting that US keeps rejecting ETFs while the rest of the world is already celebrating the anniversary of their ETFs.

just because some people are here only out of greed to make some quick money from the bitcoin price rise that doesn't mean bitcoin has become a tool for them.
if there are greedy people then it means there are other people too that have been adopting bitcoin for the financial freedom that bitcoin provides for everyone. as a matter of fact majority of bitcoiners are like this because the greedy group don't even stick around and they always lose money that discourages them in long run.

historically all those who have been waiting for a "dip" have no clue about the future of bitcoin since they mostly don't even know what bitcoin is. they just think of it as something you buy that may go up and make you rich!
consequently these people are easy on believing any FUD they read which is why during dips they always remember all those FUDs about bitcoin is dead and panic thinking that is the last time so they don't buy.
in fact this type of people is one of the biggest reasons why we keep seeing FOMO buys in bitcoin.

i think it is mostly due to lack of interest, you have already faced it in your local board according to your fist comment, and the current open PRs for new word lists suggests that too. people seem to be fine with using English even though they don't all speak it.

everyone who has checked the history and is extrapolating it is saying $400k+

i never considered 30% drop be healthy!

and what if the blacker swap event this year launched the price to $1 million because there were billions of people buying bitcoin?

simply because for a short time, there were more sellers than buyers.
it has nothing to do with "supply running out". that's just a story they tell kids to scare them into panic buying.

no it should reach $100 million withing a week.

i wasn't talking about propagation of transactions or reaching miners. i was pointing out the fact that transactions are never "canceled" ever even if you double spend the same inputs in another transaction using RBF. a single node is enough to keep the transaction valid and "out there" until any of the transactions spending the said inputs are included in a block.

10% to 15% drops are corrections not "dumping fast". you are making a common mistake of looking at the big numbers and feeling panicky which is probably why there was a panic sell today.
otherwise $4000 looks big but it really is 11% not to mention that price is already back up again due to sheer amount of panic sell and panic buy that are fighting against each other these days.

another example of big numbers but small percentages is Berkshire Hathaway (the Buffet stock since these days it is being talked about a lot) it dropped $5275 today but that was only 1%

according to bitcoin client version list provided here https://luke.dashjr.org/programs/bitcoin/files/charts/software.html
there are a little less than a 400 bitcoin core full nodes with versions below 0.12 and if RBF was implemented in core 0.12 then these clients don't have it.
we can see other clients there too but i don't know which support RBF and from which version.

1. what country are you talking about? there are already a bunch of ETFs in the world that have been here for a couple of years.
2. i seriously doubt it
3. i agree with this but i am also afraid that this is the year Tether is going to be shut down and causes a big decline in creationg of any stable coins.
4.6.8. i seriously doubt that, defi and any token creaton names are already closing in being as dead as its predecessor ICO
5. nothing new here
7. i don't think that many legitimate companies need to do this.

it is never about knowing the future price or even predicting it accurately but it is always about speculating about what is the most possible price that can be reached in the near future. and that is mostly what people mean when they start topics such as the ones you have seen.

for example right now we can speculate that with the current strong trend and the way people have been buying bitcoin there is a good chance that the $30k price is the new bottom and a strong resistance.
from there we can speculate about where the price is going and try to guess when another ATH like $40k is reached.

US dollar hasn't really been backed by anything for a very long time now and this trend can not be changed and i don't think it matters any more either.
the value of dollar has been based on the power of US and the faith that the world had in that power alongside the US itself bullying everyone into using USD and nothing else.
but as US continus having internal issues including the shitton of dollar they printed this pat months and with all the stupid forign policies that pushed every ally away, the value of USD keeps decreasing.

that initial transaction is only going to become "invalid" when the new transaction is confirmed otherwise it still is not "canceled" even with RBF replacement transaction.
for example if a node hasn't implemented RBF it will see the second tx as double spend and reject it while keeping the first one as the valid tx.

i don't think this is correct.
they have been buying bitcoin for 8 years and a even though they have been on a buying frenzy for the past 4 months they still only have 572k bitcoin.
they definitely aren't buying every day and they definitely aren't buying from exchanges.

you just chose the most gigantic one of them otherwise there has been about 30 known "big" institutional investors and they all have been buying bitcoin for a long time now. so yeah they were "in" already.
most of them don't have anywhere near as much as Grayscale does though. most of them have around 5k bitcoin.
and the total amount of bitcoin held by all of them combined is barely a million.

i don't deny they have some effects on bitcoin price, after all they are buying bitcoin even if it is not from exchanges but at the same time their influence is not even close to what is being described.

something that wasn't clarified here is that you can not "cancel" a bitcoin transaction with anything. when the transaction is out there it is out there and you can't do anything about it. the transaction can potentially remain on the network unconfirmed until the end of time if no miner picks it up ever.

i have always wondered what the initial trading price of bitcoin was but i could never find it since the historical values in most sites don't go that far back or are very inaccurate (usually charts not points).

could you please tell us the source you got this number from?

that was fake news bro. he has been trying a lot of these types of public stunts for a long time. the purpose has always been to make himself "popular" and end up selling his centralized shitcoin to traders so that it can be pumped and make him some of the millions he has spent in pumping that shitcoin so far.

you have to actually check the history before making this claim. more than half the times price has gone up during January each year!

so you just assumed this is a bubble? lol.

this is nowhere near being a bubble, this is simply underpriced bitcoin fulfilling some of its potential.