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Ref. my posts #5 and #7, I think dimensions are kept. As for Planck system where time, length, mass, charge, temperature are measured in units of ##t_P,l_P,m_P,q_P\ and\ T_P##, "0.8 time" has magnitude 0.8##t_P## of dimension [T], "0.8 length" has magnitude 0.8##l_P## of dimension [L] , "0.8 velocity" has magnitude ##0.8\ l_p/t_p=0.8\ c## of dimension [L/T] and so on.I understand that one can play with the units. But what about the dimensions? Does time really exist for example? I'm confused.