As suggested, the core ethos of web 3.0 is truly decentralisation.
Decentralisation of internet was there since the very start of the World Wide Web.
The first internet during era of ARPANET was decentralised and it evolved into giant monolithic cloud to to appease the economies of scale.
In recent times, we have seen a lot of limitations and vulnerabilities of our dependence on the cloud counting from data breaches, hacks to outages. But since Cloud has become a single point of failure.
There are tens of billions of devices on earth having capabilities far exceeding the Great Cloud, yet they are completely wasted because we insist on using the data-centers to do everything.
It is high time that we realize the ceiling and limitations of the Great Cloud and move towards a decentralized cloud where the devices in our hands are the powerhouses.
A very interesting blog on the same: https://stratechery.com/2021/internet-3-0-and-the-beginning-...