Why do we need solutions to fragmentation on Ethereum?

Because infinite gardens have no walls.

3 years ago, at EthCC [4], @ayamiya described Ethereum as an infinite garden.

3 years ago, at EthCC [4], @ayamiya described Ethereum as an infinite garden.
https://www.youtube.com/watch?v=XWzCMqyyDDI

In discussing the infinite garden of Ethereum, Aya imagined an organically growing ecosystem, evolving through different seasons, with a broad biodiversity of participating creatures.

The image of “the infinite garden” is apt for describing Ethereum - a provocative foil to the “walled gardens” of the Old Internet.

A “walled garden” refers to a digital ecosystem designed to keep developers and users contained within.

Blockchains offer users, developers, and platform providers the opposite of walled gardens: open platforms for innovating, interacting, and transacting.

The walled gardens of legacy financial and digital rails prevent people from accessing the experiences they demand or desire.

The experience of sending money from one bank to another, let alone from one country to another, commands high costs and frictions because each financial ecosystem has walls and barriers erected around it.