You're Elon-rich, but not Elon-crazy, what future tech do you invest in?

Well one of the first things is that it allows people to have fresh prepared food whenever they want it, a busy single mom with a headache can still serve her kids a meal cooked from fresh which means she'll won't even need to have expensive instant meals or unhealthy quick to prepare things, it'll be a huge money saver especially when it's easy to combine home and locally grown produce plus it'll be much easier to maintain a healthy diet.

For me personally being too busy or too tired to cook soon turns into a bad cycle of not eating properly, feeling bad, eating worse... if I could ask my oven for lunch suggestions and it'd say 'your daily protein requirements aren't met and your blood sugar is low, we have the ingredients for these meals you enjoy...' it would change my life