First collisions at the LHC with unprecedented Energy! (Ask a particle physisicist)

[JuliaL]

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Isn't Newtonian physics "good enough," as long as one stays away from very fast things and very tiny things?  Or in other words, isn't Newtonian physics adequate for anything a regular person is going to need?

Yes, although I'd like to take this opportunity to point out that it is not necessarily smallness which marks the transition into the quantum regime. If that were the case, we would expect a constant of nature which has units of length or time or energy which sets such a scale. But we don't (the Planck scale would satisy those criteria but it does not appear in quantum mechanics).

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The constant of nature which marks the transition to the quantum regime is Planck's constant which has units of Energy*time. In other words, quantum phenomena becone important whenever the energy transfer in some process times the time span it occupies are below this tiny constant. There is no fixed length below which "quantum" starts

Am I correct in interpreting this to mean that an event involving a relatively large energy (or equivalent mass)  could show quantum characteristics if it took place over a short enough time?
Do you get extra credit for things that make less sense?