Antifragile Thinking is a Substack newsletter authored by Sajal, a UK-based investor with nearly 30 years of experience. The newsletter focuses on topics around business uncertainty, investing, and finding unseen value particularly in randomness, volatility, and variability. Sajal is also the author of a book titled “Framing Business Uncertainty.” He shares authentic data and honest analysis with skin in the game, positioning himself as someone who has learned from investing mistakes over decades. His Twitter (X) handle is @unseenvalue, where he actively posts insights related to his themes. The newsletter aims to provide a spam-free, ad-free reading experience with audio and community features for subscribers. The publication serves an engaged community interested in improving decision-making under uncertainty and embracing antifragile thinking principles. Sajal’s approach combines practical investing wisdom with conceptual analysis to help readers navigate uncertain business environments.