>>13450405>chemical rockets with Isp below 400s>not nuclear powered electric ion Starship with Isp of 5000sCould be some mini-SS lifted to LEO by a regular one, and then refueled with a few hundreds tons of argon or other kind of fuel. Once you get to orbit you don't need high thrust to achieve interstellar velocity, just a bunch of high Isp engines, a lot of fuel, and possibly some gravity assist. And it's achievable with current technology.
