Hi new guy here - just building my first circuit and I'm looking at creating an LED flasher. I've come across a circuit like this: -
...which I don't understand. According to how I *think* it should work, I'm sure it should only work with non-polarised capacitors rather than the polarised ones used above. Is the diagram wrong or am I? I hope I'm wrong, actually, as as a beginner with a limited set of components, I only have polarised capacitors and no ICs (yet). Besides, simply flashing an LED shouldn't require any ICs, right?
Thanks for any help and hello all!

...which I don't understand. According to how I *think* it should work, I'm sure it should only work with non-polarised capacitors rather than the polarised ones used above. Is the diagram wrong or am I? I hope I'm wrong, actually, as as a beginner with a limited set of components, I only have polarised capacitors and no ICs (yet). Besides, simply flashing an LED shouldn't require any ICs, right?
Thanks for any help and hello all!