In my very suspect view, this book is a profound philosophical achievement resulting from 30 years of uncommitted work, and it is a pity that, as it seems, its fate will be the oblivion, considering the fragmented scientistic way the present philosophical community works. The book can be summarized in some main theses:
1) The contemporary strategy of dividing to conquer in philosophy finds its limits in the scientistic attempts of re-enchantment of the world. Some central problems demand a systematic comprehensive approach that shows its plausibility by its internal coherence. This is the metaphilosophical thesis of the introduction.
2) Methodologically, a Moorean common sense is defended. In this humble sense, common sense isn’t opposed by science but complemented by the last one. The tremendous impact of science leads us to forget this point, falling into scientism.
3) Externalist theories of reference are replaced by more sophisticated forms of meta-descriptivist approaches, which replace Fregean senses by semantic-cognitive rules.
4) Existence is understood as the disposition of something of having an identifying rule effectively applicable to itself, independently of the existence of this identifying rule or of any epistemic subject.
5) The main anti-verificationist arguments are debunked. Positivists and post-positivist philosophers have never really understood the semantic verificationism originally proposed by Wittgenstein and their versions and objections are fundamentally wrong.
6) The concept of fact is rescued as an umbrella term that covers not only static facts like states of affairs but also dynamic facts like events or processes. Hence, facts are the universal truth-makers.
7) A statement is verified by means of aspectual correspondences with facts. There are two kinds of correspondence: anterograde, anticipating verification, and retrograde, responding to sensory impressions by means of verification. Furthermore, analogous procedures can be found in the formal sciences. Finally, it is shown that coherence is only a mechanism by means of which correspondence is achieved.
8) The last thesis concerns the external existence of the facts. They are projections of sense-data based on the usual criteria of inherent external reality given by maximal intensity of sensation, potential intersubjectivity, the submission to natural laws, etc., as far as they work together. The resulting attribution of reality is immune to skeptical scenarios which were only able to jeopardize the ultimate effectiveness of those criteria if they were shown to be effectively experienced as given, once the concept of adherent reality is a relative one and cannot be applied outside the relation to given skeptical scenarios.