Is it really impossible to expectedly run the code with "{% if %}", "{% with %}" and "{% translate %}" outside of "{% block %}" in Django Templates?

Question

I have base.html below:

# "templates/base.html"

{% block content %}{% endblock %}

And, I have index.html which extends base.html as shown below:

# "templates/index.html"

{% extends "base.html" %}

Then, I use {% if %} which is False outside of {% block %} in index.html as shown below but Hello World is displayed unexpectedly:

# "templates/index.html"

{% extends "base.html" %}

{% if False %}
    {% block content %}
        Hello World
    {% endblock %}
{% endif %}

So, I use {% if %} inside of {% block %}, then Hello World is not displayed expectedly:

# "templates/index.html"

{% extends "base.html" %}

{% block content %}
    {% if False %}
        Hello World
    {% endif %}
{% endblock %}

Also, I use {% with %} which defines name variable outside of {% block %} in index.html as shown below but John is not displayed unexpectedly:

# "templates/index.html"

{% extends "base.html" %}

{% with name="John" %}
    {% block content %}
        {{ name }}
    {% endblock %}
{% endwith %}

So, I set {% with %} inside of {% block %}, then John is displayed expectedly:

# "templates/index.html"

{% extends "base.html" %}

{% block content %}
    {% with name="John" %}
        {{ name }}
    {% endwith %}
{% endblock %}

Also, I use {% translate %} which defines title variable outside of {% block %} in index.html as shown below but This is the title. is not displayed unexpectedly:

# "templates/index.html"

{% extends "base.html" %}
{% load i18n %}

{% translate "This is the title." as title %}
{% block content %}
    {{ title }}
{% endblock %}

So, I use {% translate %} inside of {% block %}, then This is the title. is displayed expectedly:

# "templates/index.html"

{% extends "base.html" %}
{% load i18n %}

{% block content %}
    {% translate "This is the title." as title %}
    {{ title }}
{% endblock %}

I know that the code outside of {% block %} doesn't affect the code inside of {% block %} because the code inside of {% block %} is evaluated first according to Template inheritance.

So, is it really impossible to expectedly run the code with {% if %}, {% with %} and {% translate %} outside of {% block %} in Django Templates?