"Decentralized computing is expensive and is limited by the block Gas cap, making many decentralized applications expensive and impractical."
"As you can see, the blockchain consensus mechanism is redundant in design: all miners perform the same calculation and then agree on the result."
"The calculation is quantified, and the cost is correspondingly based on how complex the code is to execute."
So computing is expensive and limited.
Turebit Aimed at solving this problem.
will truebit support wasi build?
There have been a couple Truebit tasks using WASI. You might be able to simply wrap Truebit runtime (a.k.a. emscripten-module-wrapper) around this SDK: https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-12/