1. There really is just one concrete particular, viz., the whole universe (the blobject).
2. The blobject has enormous spatiotemporal structural complexity, and enormous local variability, even though it does not have any genuine parts.
Source: wiktionary
But nihilism is also compatible with existence monism—the thesis that there is a single, all-encompassing simple (the cosmos, a.k.a. “the blobject”)—as well as the extreme nihilist thesis that there are no objects whatsoever.
Source: wiktionary
Brentano’s universe[…] like this ball it does not host any independent things or objects, but instead seems to be a single unitary ‘blobject’ that simply exhibits a certain (spatial and temporal) qualitative structure.
Source: wiktionary