EIC So what questions

1. EICSo what questions E.C. Aschenauer arXiv: 1212.1701 & 1108.1713

2. Global Questions Is spending 1Billion $ on and EIC really the best investment NP in the US can do? If this physics is so important why was HERA closed and not transformed in HERA-3 Why do you need EIC if you have Lab-12GeV and RHIC-pp or the inverse question Why do you need JLab-12GeV and RHIC-pp if you built an EIC what is transformational of the EIC physics what is the broad impact of the EIC science what will be textbook physics at an EIC how is what is measured at an EIC really related to the visible mass, can you write down an equation for this what are the four or five key plots that will form the basis of the "highlight" PRLs from the first 5 years of operation of EIC? 

3. Specific questions Why do we not present more physics topics which are more speculative (= cannot calculate and simulate everything in advance), i.e. hadronization Which of the measurements at an EIC will truly give a deeper understanding of confinement It was promised so often by now to resolve the spin-puzzle why should anybody believe an EIC will deliver Wyare GPDs such important object if you can never fully constrain them through measurements (remaining model dependence) why should anybody be excited about a stamp collection measurement of structure functions, like transversity and friends will anybody ever be able to correlate sivers really with Lq or Lg in a model independent way as is always suggested. Why is measuring Jqand Jgnot enough. Is it really needed to separate all the individual contributions to the helicity sum rule. why do we need to resolve both sum rules? What luminosity and energy reach is really needed, what is the driving physics, how quickly will we be systematic limited, i.e. polarisedmeasurements