Should it be "a reality" instead?

For companies and governments, the stakes could not be higher. The first to develop and patent 6G will be the biggest winners in what some call the next industrial revolution. Though still at least a decade away from becoming reality, 6G — which could be up to 100 times faster than the peak speed of 5G — could deliver the kind of technology that is long been the stuff of science fiction, from real-time holograms to flying taxis and internet-connected human bodies and brains.

Should it be"a reality" instead"?

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