is Nvidia stock a Bubble

i just bought recently Nvidia stock after they announced the split
and the stock is already up more than 10%.
while i'm very glad about those gains
Considering the valuation is already more than 2.5 Trillion
do you think those gains are sustainable?
do you think eventually the stock can reach 3 4 5 Trillion
and it's a good long term hold
or are we near a major crash?
i know no one can predict what is going to happen.
i just wanted to know your general opinion.
if you consider Nvidia a good long term hold
or a major bubble.