CRYPTO CURRENCY'S CRYPTONITE!

As green Cryptonite is to Superman, what is the Crypto-currency's "green-cryptonite? Well, before we get started on that score, the fictional version is spelled with a "K" as in Kryptonite, so for all the comic gurus out there, I knew that, so there.
That, however, is not what concerns me right now, since, my problem could be far scarier than the fictional stuff that can weaken or mortalize the comic character.

So, according to Bloomberg, on17, 2018 - If you had bought a Bitcoin at the beginning of 2017, when one coin cost less than $900, you would have had a profit of more than 1,200 percent right now. So clearly it would seem that for all intent and purpose, Bitcoin is at least as powerful as the super powerful justice fighter but what if there was a chink in his suit of armor, a weakness as it were, that can potentially "crush" Bitcoin?
Well, according to Forbes, such a weapon already exists and, as their correspondent, writes:" Big governments and big banks will crush Bitcoin, but they won’t kill it. The technology that created Bitcoin will do it, one day."