We published a paper entitled “Subterahertz collective spin-resonance modes and field-adaptive reservoir computing in the chiral helimagnet Cr_1/3TaS₂” in [Phys. Rev. Applied 24, 054022 (2025)]. Monoaxial chiral helimagnets (CHMs) host rich helical spin textures, including chiral soliton lattices (CSLs) with tunable periods. However, the spin resonance modes of existing CHMs lie in the gigahertz range, limiting their potential for high-speed signal processing. In this work, by combining ferromagnetic resonance, electron spin resonance, and magneto-Raman spectroscopy, we uncovered subterahertz CSL phonon modes in the CHM Cr_1/3TaS₂. Near the critical field, nontrivial CSL phonon modes reach 0.15 THz, while a uniform ferromagnetic resonance mode emerges at 0.375 THz in the forced ferromagnetic phase under 9 T. The CSL phonon frequency in Cr_1/3TaS₂ is five to six times higher than that of isostructural Cr_1/3NbS₂, owing to the larger spin–orbit-coupling-induced Dzyaloshinskii–Moriya interaction. Micromagnetic simulations further resolve the frequency spectrum and the spatial distributions of amplitudes, phases, and precession trajectories of each CSL resonance mode. Moreover, we demonstrate that physical reservoir computing exploiting the nonlinear collective spin dynamics and field-controlled hysteresis of these nontrivial spin textures achieves exceptional performance in time-series prediction tasks. Our findings pave the way for CHM materials toward subterahertz signal processing and neuromorphic computing applications. Congratulations to Zishuang Li, Shuai Zhang (equal contribution), and Co-workers!