Can the call stack overflow? If yes, why?

Yes, the call stack can overflow, which is called a stack overflow. This occurs when the depth of recursion or the chain of nested calls becomes too large and exceeds the allocated stack size.

Reasons for stack overflow:

• Infinite or excessively deep recursion without a base case.
• Very deep nested function calls.

For example, in JavaScript:

function recurse() {
  return recurse();
}
recurse(); // will cause a stack overflow

In the browser, this will result in an "Maximum call stack size exceeded" error. To prevent this, you need to control the recursion depth or use iterative algorithms.