it seems strange to assume that they cannot one day do more.
What they will be able to do in the future depends on how are present assumptions and what we think we are trying to accomplish are revised. The important thing is that 'more of' what we're doing now will not push boundaries.

they both provide the same result.
And that's exactly what current approaches can manage - and that's fine. But let's not pretend we're building stars when we're just making plain-old lightbulbs.