!7

p-experiment {
  DynamicVStack stack = dynamicVStack();
  showFrameHidingConsole(jscroll(stack));
  repeat with ms sleep 500 {
    if (!mouseOverComponent(stack)) {
      if (stack.numComponents() >= 30) stack.clearComponents();
      stack.addComponent(jMarginButton(randomEnglishWord()));
    }
  }
}