Why shall we keep repeating the epicurian cosmology, if we know so much more about nature now?!
Welcome Phscha! However given you have made a very specific point in regard to physics, and I better address it immediately.
This forum is dedicated to the pursuit of Epicurean philosophy, which is not tied to the terminology of 300 BC, but is tied to the fundamental conclusions that were and are valid today:
- The universe was not created by supernatural forces. As such there was no "before" or "outside" the universe, which translates into a philosophically consistent understanding that the universe as a whole is eternal and infinite.
- Human life is tied to "material" existence which may refer to matter, fields, energy, or whatever terminology is popular, but which is not supernatural in any way. There is therefore no life after death other than what technology may be able to extend but there is certainly no "eternal" soul.
- There are no "eternal forms" or "eternal ideas" and therefore morality and ethics are relative to circumstance. The goal of nature is the pursuit of happiness through pleasure, with the term pleasure broadly understood to mean all living existence which is not painful. Which pleasures we choose to pursue will be individual in nature, but there are no external supernatural ideal forms of the best way of life.
The remainder of Epicurean physics has always been a matter of fitting our conclusions to the observations that we make, and that's an ongoing process. We welcome all who are willing and able to realize that Epicurus was correct that the evidence provided us by nature leads to these conclusions. Modern technology and science can be used to deepen that understanding for normal people, who thereby benefit from Epicurean philosophy. On the other hand, there are those who prefer to use modern technology and science in opposition to Epicurean philosophy, most frequently in the service of some form of radical skepticism or deference to self-appointed "experts." This forum is limited to those who are in the first category.
I presume that you'll be ok with this general framework, but if you're not then you'll be better off posting somewhere else.
I regret if this post seems overly frank, but I hope you and others here will appreciate it. We get all sorts of people who come here with all sorts of agendas. The agenda of THIS forum is to better understand Epicurus' philosophy and how we might apply it ourselves. Our objective is not to free-lance on physics or any other aspect related to Epicurean philosophy.
I think most everyone who spends time reading closely into Epicurus and following our discussions here comes to understand that this is the best approach.