This is one of the greatest achievement that happen in bitcoins. Yeah, this is the first time that bitcoin reaches 40K$ per btc. One true legendary digital currency is bitcoin and has already beat up the other strong currency (fiat in accordance to its market). I think no one had expected this but bitcoin beat it because bitcoin is global digital currency.
Without a doubt it was a great achievement and we did not seemed to realize how big it was as now bitcoin is having problems reaching that level again, we will have to see what happens from now on, I believe reaching that price is just a matter of time but with bitcoin you never know, it seems individual investors were the main reason the price went that high and institutional investors have not invested at all lately thinking the price is too high and without their support the rally cannot go for long.