In this talk I will present a potentially game-changing new particle detector technology called LiquidO. This idea turns the concept behind the widespread scintillator detectors on its head: for 50 years research has focussed on making more and more transparent scintillator materials, whereas LiquidO actually requires an opaque scintillator. In LiquidO, scintillation light is confined near its creation point due to a short scattering length and collected by a dense grid of wavelength shifting fibres. The resulting topological information, normally lost in transparent LS detectors, allows for powerful event-by-event particle identification including MeV-scale positrons, electrons and gammas, enabling strong background suppression. Another advantage over classical liquid scintillator detectors is the possibility of loading to unprecedented levels, since high transparency is no longer required. I will give an overview of the LiquidO idea in this talk as well as show the first results from the ’micro-LiquidO’ prototype detector, which provided the proof of principle of light confinement.