For now yes, $400k seems to be very high, so for me at least let's test $100k first and then see how it goes. Not saying that we can't reach $400k, we've seen throughout Bitcoin's past history that everything is possible. And there are people who doubt it, but then regret their decision later when it when from $1.00-$100 and then higher.
So currently the price is around $70k and see how this bull run will go for us.
And then after than, the next block halving and then next, but this bull run? I doubt that $400k is achievable, just trying to be realistic here.
Yes, we do not reject the opinion about the highest predicted price of $400k but this prediction is very illogical and can be achieved this year, at least we predict a price of $400k for the next 5-10 years because in fact we always predict illogical prices when the market is increasing, but we forget that the market can fall at any time after experiencing a significant increase