I’ve got few simple questions (and views) about which I’m pondering on for some time now and since I’m layman on these topics I’d love to hear thoughts and insights about them from some of the great contributors at this forum. Thank you! -- Is gravity in center of star highest, lowest or something in between? Imagine being put in center of a star, would you be smashed - by gravity pressing on you from all sides? Or being torn apart - by gravity pulling you apart from all sides? Or perhaps your body would feel no gravity effect at all - gravity from all sides canceling itself out? -- Imagine a pair of virtual particles popping into existence near Black Hole horizon, where BH might immediately suck one particle in and leave the other one out to stay - wouldn't this increase total mass of Universe? And thus brake conservation of energy law? -- How is movement, actually any motion, possible? (Strange question indeed, but please bare with me.) Imagine moving your hand from point A to point B, now, how many 'distinct steps' happened in that movement? Watching that on TV in slow motion would reveal 25 or 30 fps (frames per second), recording that motion with newest slow-mo cameras would reveal thousands of fps... the better the slow-mo camera we develop the higher number of fps will be recorded. But the question is, how many fps happened for real? It cannot be infinite number of fps or else we could never move from point A to B, since it would mean making infinite finite, right? (From this POV the initial question.) Could we calculate all steps (fps) by dividing that distance with Plank length (10^-33 cm)? But then again, isn't it puzzling that a single hand movement made such enormous number of distinct steps (say 10^32 fps) in such energy efficient way, which no camera could ever record fully? -- Is Universe really expanding or is everything in it conctracting? Would not we observe the same things in both cases (red shift and all objects moving appart)? The idea for contracting comes to me due imposibility for existence arising out of pure nothingness (which is not void of just all matter and energy, but even space-time and quantum fluctuations, and stuff like awareness or whatever imaginable or not). So, since existence (of something, whatever the true nature of its essence is) must be eternal, then another way to explain our observable Universe is to imagine that before birth of our Universe there was (is) a complete solidness of somethingness infinite, which then exploded not from a singular point but from everywhere. Imagine a glass of water, and let's say water is that complete solidness, all molecules being perfectly connected, now imagine this water exploding in sense that all water molecules go appart, this gives birth to billions of tiny water drops and so volume of glass which contained all water is now highly increased, and that which now separates all drops is now empty space (nothingness), now, if these drops would all stay in its place and become shrinking it would look like if empy space in between of them is expanding. How to know which model (expanding, contracting) is true? IMO Universe is expanding, but I'd say it came into existence (the way it is) from complete solidness 'exploding everywhere' (at Plank's lenght more exactly).