Shabbat is the weekly Jewish holiday that extends from sundown Friday to dusk Saturday.
Shabbat is where the word Sabbath come from: it means praying, family time, staying close to home, and not working.
Not working includes not lighting a flame, which extends to not turning on electricity.
But modern life is full of conveniences like elevators and stoves and refrigerators that light when you open them, and since people still need to get up to their floors and would really like to eat hot (or any) food, there is a thing called Shabbat mode.
Shabbat mode means that on Shabbat elevators in some buildings in the world will stop at every floor, going both up and down, so no one person has to worry about pressing a button and thus changing which circuits are fired. It’s set in advance. All you do is get in when doors open and wait to arrive at your destination. Shabbat mode means you can set your refrigerator to not turn on the light when you open the door… or you can do the mechanical version which is to tape over the door sensor. Shabbat mode means people invented hot plates a lot time ago that stay plugged in all day, and that today ovens and pressure cookers can be preset before Shabbat to work at certain times during Shabbat.
Open your fridge, turn the display on, then press and hold the Freezer and Wifi buttons for three seconds till ‘Sb’ appears on the screen to enjoy traditions codified in medieval times in your own home.
But how far can you take Shabbat mode?
How about personal hygiene?
I ask you to imagine a modern electric bidet attachment with Shabbat mode.
Perhaps you know you tend to use the bathroom either at 6am or 4pm. So you set up your bidet in advance to go off at 6:30am and 4:30pm, to give yourself a margin of error.
Worst case, you sit there and think about life, or perhaps about your deity, for a few minutes. Isn’t that what Shabbat’s about anyway? And then: automatic water sprinkling cleaning your bum.
But imagine the downsides.
You forget to close the lid. When you finally go to the bathroom, water is dripping from the ceiling.
Do I need to call the plumber? Oh no, that’s just Shabbat mode. (Goodbye, lease.)
You have a friend over for Shabbat. You forget to specify when they should or shouldn’t go to the bathroom.
Must I spell it out for you? (Goodbye, friend.)
Maybe not everything should have a Shabbat mode.
For a Q&A on automatic toilet (not bidet) and sink use on Shabbat, check out this discussion from Stack Exchange.