60 minute fallacy. Maybe a better title - but let's call a spade a spade. FTP is stupid, any training system organized around FTP or a fractional value of FTP like sweet spot is stupid. You can't make lemonade 🍋 without shaking the lemon tree. Try something different for your new year's resolution. Dump your FTP based training and work on training based on lactate threshold. Or, keep on keepin' on. Maybe spending hundred of dollars a month to do training that isn't effective and takes away then joy of sport is just what makes you, "you."