I don't think this is true for modern languages. Rust seeds the whole state by default: https://docs.rs/rand/0.6.5/rand/ https://docs.rs/rand/0.6.5/rand/ Juli

I don't think this is true for modern languages. Rust seeds the whole state by default: https://docs.rs/rand/0.6.5/rand/ https://docs.rs/rand/0.6.5/rand/ Julia seems to seed 128 bits: https://github.com/JuliaLang/julia/blob/5741c7f53c5ea443bbd73cc5157b83de415c6d1b/stdlib/Random/src/RNGs.jl#L249 https://github.com/JuliaLang/julia/blob/5741c7f53c5ea443bbd7... However, your statement seems to apply to old languages: C# uses only 32 bits and the time for seeding: https://docs.microsoft.com/en-us/dotnet/api/system.random?view=netframework-4.8 https://docs.microsoft.com/en-us/dotnet/api/system.random?vi... Java only supports 48 bit seeds: https://docs.oracle.com/javase/8/docs/api/java/util/Random.html https://docs.oracle.com/javase/8/docs/api/java/util/Random.h...