[preseinger]

What do you mean by "conditions"?

> errors bubble upward through the call tree until they're handled. There's nothing simpler

Between

    output_a := f1(input_a)  // f1 throws exceptions on error
    output_b := f2(output_a) // f2 throws exceptions on error

and

    output_a, err := f1(input_a)
    // inspect and deal with err
    output_b, err := f2(output_a)
    // inspect and deal with err

it seems uncontroversial to me that the latter is less complicated than the former, and easier to model control flow paths.

Exceptions make sense in a lot of contexts! Just not services, servers, or long-lived processes.