Gotcha, I’m gonna go with hashrate. The higher the hashrate the harder it is to 51% attack. More hash, more miners plugged in, more people, businesses etc choosing to mine bitcoin and also paying the toll that mining incurs this protecting the network itself cause they don’t want to sell for a loss. Please tell me I’m right, 😂😂😂😂

It is, but why is a 51% attack neccesary? And why is it so difficult? And who validates it?