Your starting point is taken up by Descartes in his Meditations on First Philosophy.
The more modern expansion of these ideas can be found in Phenomenology by people like Husserl or Heidegger.
There are a lot of contemporary philosophers dealing directly with philosophy of mind and consciousness which is more of an offshoot of these questions once you sideline questions of grounding.
And there is also more contemporary philosophy of science/math that deals directly with questions of consistency and the grounding of logical or rationalistic methods.
Basically there are a lot of resources if you are interested in this stuff, and I would heavily recommend reading and understanding what others have thought about before trying to re-invent the wheel as your starting point. That takes too long and there's a long way to go.
Not trying to reinvent anything, just sharing things that I've found appealing. Not claiming this author was first or last or original or not, only an influence on myself. Have you read the book? If not, it may contain perspectives you haven't encountered yet. Thanks for the recs!
The more modern expansion of these ideas can be found in Phenomenology by people like Husserl or Heidegger.
There are a lot of contemporary philosophers dealing directly with philosophy of mind and consciousness which is more of an offshoot of these questions once you sideline questions of grounding.
And there is also more contemporary philosophy of science/math that deals directly with questions of consistency and the grounding of logical or rationalistic methods.
Basically there are a lot of resources if you are interested in this stuff, and I would heavily recommend reading and understanding what others have thought about before trying to re-invent the wheel as your starting point. That takes too long and there's a long way to go.