@hamishtodd1 Yes you do - if the acceleration is g, velocity is tg and position is t^2g. You learn it in grade school physics.
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Replying to @cmuratori
@cmuratori@hamishtodd1 That's where the parabola comes from. It's why (Newtonian) gravitational arcs are parabolas not, say, cubics.6 replies 0 retweets 0 likes -
Replying to @cmuratori
@cmuratori ...it's parabolas. I'm saying it lets you think about trajectories in this novel connected way.2 replies 0 retweets 0 likes -
Replying to @hamish_todd
@hamishtodd1 Right, that has nothing to do with the real world whatsoever. Which is what I'm trying to get across. Do you see that?7 replies 0 retweets 0 likes -
Replying to @cmuratori
@cmuratori that was, say, 2D. It feels strange that you would argue portal *in no sense, no matter how weak* can offer insights into physics1 reply 0 retweets 0 likes -
Replying to @hamish_todd
@hamishtodd1 I'm not arguing that. I'm arguing that it doesn't do that in any way that _every other action game_ doesn't also do.1 reply 0 retweets 0 likes -
Replying to @cmuratori
@cmuratori Mkay. And does the fact that the player can link bits of space really not elevate it at all?2 replies 0 retweets 0 likes -
Replying to @hamish_todd
@hamishtodd1 Not at all. Because it's totally not physically sound. It's pure game physics, like Mario's mid-air jump adjustment.7 replies 0 retweets 1 like -
Replying to @cmuratori
@cmuratori@hamishtodd1 Only I might argue that's actually _more_ insightful, since that's not far from real rocket thrust.1 reply 0 retweets 0 likes -
Replying to @cmuratori
@cmuratori@hamishtodd1 Portal's portals are _completely_ bogus. They have non of the expected properties of discontinuities in spacetime.1 reply 0 retweets 0 likes
@cmuratori @hamishtodd1 You can say it's interesting to explore the fiction, but that's true of most games that have some physics.
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