ELI5 USB - do you really need to 'eject' a thumb drive?

Why should we ‘eject’ before physically removing a USB device? Who came up with the idea of USB in the first place? What is ‘juice jacking’ and why do we need to watch out for it? ... we explain like I'm five Thank you to the r/explainlikeimfive community and in particular the following users whose questions and comments formed the basis of this discussion: perkovic15, nmxt, admiralakbar1, thezhoumustgoon, dcsantonio, imlagginghelp, tstack123, intanetto, ddbaby, peppercakerinkiki and tbf16 To the ELI5 community that has supported us so far, thanks for all your feedback and comments. Send us an e-mail: [email protected]