'That' refers to 'speed'. ie "speed up the learning process far beyond the speed of traditional learning curves"
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Silly SallyI happened to come across this phrase and find it faulty. ... speed up the learning process far beyond that of traditional learning curvesTechnically it is faulty. There is no noun that "that" replaces. The reader is expected to generate the noun "speed" from the verb "speed up", which shouldn't happen in good writing. Here's a way of wri
Silly SallyWhat if It were only "speed up the learning process beyond traditional learning curves", like speeding up a process beyond a rate? Still faulty?It sounds all right to me. The faulty part was the phrase "that of", and this version does not contain "that of".
Silly SallyOxforddictionary.com describes a learning curve to be a
Silly SallyWould it still be fine if one says "accelerate" instead of "speed up"?Yes.