TL;DR: Elon Musk says the algorithm that determines what appears in each user's X feed will be made public within a week – a move he claims will bring transparency to the platform's inner workings.

Q. I use Excel to do traditional linear forecasting, but I would like to upgrade to exponential smoothing for more accurate forecasts. Is there a way to do this in Excel? A. Accurate forecasting is ...

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Explore how algorithm-driven investment platforms work, their benefits, drawbacks and when they might fit into your financial strategy Written By Written by Staff Money Writer, WSJ | Buy Side Molly ...