I’ll take your word. Thanks

Except your comment and the post seem to exist in different frames of reference.

The first advise is get expert help.

Find a civil engineer or a structures engineer and ask them.

That crack does not look good. If I remember correctly cracks with more than 1mm gap should not be ignored.

If you don’t want to follow any of the previous advise, carefully monitoring for movement on the crack on a medium to long timeframe is, IMHO, the most irresponsible you can be.

Somehow I always think of the migrant boats crossing the Mediterranean. I hope events are unrelated.

In a lot of places the words ‘tea’ and ‘infusion’ are used interchangeably. Might be that…