While i question your kcal count, i agree that swimming is one of the few great exercises for weight loss.
Also what most people consider very long distance running (like at least 20 miles per week, realistically even more) is great. IIRC your body doesn’t even start to primarily burn fat until like 30 or 40 minutes into an intense workout and it’s slow to burn any.
Pay attention you are at the gym. 90% of the people on treadmills are walking with the vast majority getting off after 20 to 30 minutes. Dont get me wrong. Its better than doing nothing, but its like bare minimum maintenence and definitely not even close to fat loss.
People burn through a small amount of their glycogen stores at the gym. Maybe 100 to 200 calories. Go home and drink a 500 calorie smoothie as a reward and wonder why they aren’t losing weight.
They just realized they were training a model how to authenticate to their internal systems and selling that model would allow any user who bought it to do the same.
Don’t worry the robo apocalypse will continue after a brief intermission.