Are Blockchains Actually Immutable?

Bring up the topic of blockchains and it won’t be long before the word “immutable” is dropped into the conversation. After all, a blockchain’s inability to be tampered with or modified is one of its biggest selling points. But, is it actually as immutable as they say it is? Once a transaction is recorded on a blockchain, does that mean it’s carved in stone? “Yes”, “no”, and “sort of” seem to be the resounding responses. So why can’t people agree on blockchain technology’s most marketed feature? “Firstly,” says TEDx speaker and founder of Mycryptopedia Bisade Asolo, “it would be useful if we