So, I got a request for suggestions from the community here.

I've been an android user basically all my life, and recently I've had a need for music. There's a long story here, but basically, Spotify is a no-go. I want to keep my own list of music files, sort them on PC, send them to my phone, and play it there. I do have means to get files I'm interested on, and playback devices and connections are no issue. So far so good.

However, the experience I've had has been lacking, because I'm missing an important step: Synching. I've been copying everything manually. Back when iPods weren't a joke, way way back, I used one and the iTunes <-> iPod experience was great. I could setup playlists on PC or restrict certain files, then have them show up on the iPod. Then playing and rating music a number of times on iPod and those stats would transfer and generate new playlists such as most and least played. I'm looking for something like that again. I don't need a complete seamless experience, and the synching operation doesn't need to be done by an actual music playback application either.

Can anyone help me with this? What mobile+desktop applications combos do you all use for music and do they synch up?

YouTube just told me again about how turtles have nerve ends on their shell and how they have a decent amount of sensibility through it. Also, I've seen videos of turtles being social and helping one another and, finally, while this is apparently a bit rare, I did know people who owned iguanas who had some small attachment to their owners, and one would actually stick around for some stroking of their back.

So, adding all up, let's just say this: I never owned a turtle and never really spoke about turtles with people who own them. I don't know if they bond, I don't even even know if they visibly give any indication of noticing being handled through their shells.

So, turtle owners... Do turtles like being pet through their shells?

And what were the dominant terrestrial species at said time? Would there even be any? I have zero idea of what's the expected survival rate of an iPhone in the fossil record, but I like to imagine a giant sloth stepped on one once and we are none the wiser.

Alternative title:

"Assuming the timeline is stable and time travel is possible, but no evidence is ever found until its invention, what would be the earliest acceptable time period for time-travel tourism, and the latest cut-off point no one would be allowed to go to?"