Cardano needs a strong system that can use elaborate and heavy tools and techniques while still having a reasonable expectation of fault tolerance, both of which Haskell is able to satisfy.

Fault Tolerance

Haskell libraries has evolved greatly and can now be used to write production applications. 

Library Evolution

Haskell has been greatly developed both socially and technologically over the last few years, improving its dependency resolution

Dependency

The software is easily reproducible by using the same configuration values and dependency values.

Reproducibility 

There are many well trained academic and industrial professional developers working in Haskell as compared to its competitors.

Talent Pool

The rapid evolution of Haskell's libraries have allowed it to create a bridge to JavaScript, allowing it to expand its capabilities in security and protocol implementation and the possibilities of Cardano working in browsers/mobile devices.

JavaScript for Haskell

- Fault Tolerance
- Library Evolution
- JavaScript
- Dependency
- Reproducibility
- Talent Pool

University of Connecticut

Cardano has processes and protocols that are distributed, bundled with cryptography, and require a high degree of fault tolerance due to Byzantine actors, which are malformed messages and faulty clients causing havoc on the network unintentionally. 

Why Haskell?

Hoskinson, Charles. (2017). Why Cardano. https://why.cardano.org/

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