#include <stdio.h>
  #include <stdlib.h>

  int main() {
    char *s = "world";

    s[0] = 'o';
    s[1] = 'w';
    s[2] = 'n';
    s[3] = 'e';
    s[4] = 'd';

    printf("Hello, %s\n", s);
  }

The point of Wasm is - programs can and will malfunction (and some will be malicious), so we have to protect the environment that runs it.

That was definitely not my experience at that time using a linux desktop.

Everything _else_ was able to do this just fine, in particular it's main competition, Adobe flash. That was actually _almost_ a first class experience and I didn't need to track down and install "icedtea" to make it all work. It just worked out of the box.

The JVM promised "write once, run anywhere." You can blame me for that failure, if you like, but it was then and always was a flat lie. You simply choose to ignore this.