Donatello wiggles his fingers above the data point like some kind of fortune teller, pausing again as Keith indulges him in information. "Wait, wait, wait- you don't retain what you download??? Agh, what is this? Some kind of...failsafe so we don't fry our brain or something, does it just rewrite the information installed from a previous data point? Oh come on!" The latter he directs at the data point itself as though it's committed some kind of grievous crime against him. It's punctuated with a glare before he sighs.

"Should've known it was too good to be true. Way too easy, the only feasible way you can retain proper knowledge is by learning and understanding it yourself. Do we know for sure that's all it makes disappear? My brain's kind of important, I need everything in tact." He slides a longing look at the data point.

"So promising, and yet an early betrayal. Alas, now I'm not sure if I should commit to gaining the forbidden knowledge of alien agriculture or if I should wait and see if anything else catches my attention," he sighs, brushing the back of his hand against the sphere as though he were parting with a dear one.

It hits him a nanosecond later as to what he's just done- along with all the info contained in the data point, making him jerk back physically.